827176 Induction Range
Specifications:
- Product Name: Induction Range (IR) Series
- Model Number: #827176
- Revision: A – October, 2016
Product Information:
The Induction Range (IR) Series features two separate electronic
systems with separate control boards for the induction cooktop and
oven functions. The induction cooktop utilizes a generator and
control board with separate software for communication and control.
The induction range is designed to provide efficient and precise
cooking results.
Product Usage Instructions:
Induction Cooktop:
- If a logic or programming issue is suspected, consider
replacing the control board as it is the less expensive part. - Avoid connecting the unit to 120 VAC to prevent error E6.
- Do not use coil assembly current measurements as a diagnostic
tool.
Induction Range (IR) Oven:
The IR oven may display errors on the selector knob or
Electronic Control Housing (ECH). It is controlled by a relay board
that receives commands from the control to activate oven
components.
Induction Cooktop Diagnostic Mode:
This mode allows testing of cooktop systems, viewing stored
error codes, real-time sensor readings, and entering/exiting
Showroom mode.
Heat Sink Temperature Test:
Test the heat sink performance to ensure proper functioning of
the induction range.
FAQ:
General Errors Table:
| Code | Description | Test/Cause | Action |
|---|---|---|---|
| 03 | Continuous Sensor Activation | Liquid or cookware on control glass | 1. Remove cookware from control glass. 2. Clean control glass. |
| 20 | Wrong Connection | Input voltage > 300 Volts | 1. Cycle unit power. 2. Check power supply wiring. 3. Perform unit reconfiguration. 4. Replace induction cooktop wiring harness. 5. Replace control board. |
| 22 | Pad Error | None | 1. Cycle unit power. 2. Reseat comm cable(s). 3. Perform unit reconfiguration. 4. Replace control board. |
| 30 | Data Flash Error (result of flashing software) | None | 1. Cycle unit power. 2. Perform unit reconfiguration. 3. Replace control board. |
| 31 | Invalid Configuration | None | 1. Perform unit reconfiguration. 2. Replace generator. |
| 36 | TC temperature too high Control Temperature Readout | 1. Test fan operation. 2. Ensure fan vent is not blocked. 3. No large pot or pan overlapping the control area. 4. Avoid direct sunlight or heat lamps on controls. |
Troubleshooting
Induction Range (IR) Series
TROUBLESHOOTING
This section of the manual contains troubleshooting information which helps the Certified Service Technician troubleshoot a Wolf Induction Range.
Induction Range
The induction range has two separate electronic systems, each with a separate control board. Access to the troubleshooting is determined by if the induction cooktop or the oven is having an issue.
Induction Cooktop
The generator and control board has seperate software that communicate between each other to control the induction cooktop. If a logic or programing issue is suspected the control board should be replaced first as it is the less expensive part.
On 36″ models the left generator is the controlling generator and contains most of the software and programming for the generators.
Connecting the unit to 120 VAC will cause an error E6. If the induction cooktop is to be used in Showroom mode, after the error occurs proceed with the steps to place the cooktop in Showroom mode.
Measuring current on the coil assemblies does not give reliable results, and is not recommend as a diagnostic tool.
Induction Range (IR) Oven
The IR oven displays error on the selector knob or the Electronic Control Housing (ECH). The IRoven has a relay board that receives command from the control to activate the oven components.
· TO AVOID ELECTRIC SHOCK, POWER TO THE UNIT MUST BE DISCONNECTED WHENEVER SERVICING AND/OR ACCESSING COMPONENTS.
· UNIT SURFACES AND COMPONENTS GET HOT DURING USE OF THE APPLIANCE.
· PULLING A UNIT FROM ITS INSTALLATION SHOULD ONLY BE PERFORMED BY AN CERTIFIED SERVICE TECHNICIAN OR INSTALLER.
· When working on the appliance and components, be careful handling sheet metal parts. They may have sharp edges.
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Induction Range (IR) Series
Troubleshooting
Induction Cooktop Diagnostic Mode
Used to test the cooktop systems, view stored error codes, view real-time readings from system sensors, and to enter/exit Showroom mode.
Entering Diagnostic Mode · Enter from Lock Mode. · Touch and hold the “+” pad and “-” pad for 5 seconds. · After 5 seconds enters LED test, alerting the user to remove their fingers. · If another key pad sensor detects a signal, Diagnostic Mode does not engage. · If either the “+” or “-” pad is not released after 7 seconds, Diagnostic Mode does not engage. · Power to all coil assemblies is disabled. · After 60 seconds if no input is detected the control returns to Lock Mode. · ALL OFF pad exits Diagnostic Mode and the control returns to Lock Mode. · There are no audible signals. · To step through the various tests touch the “+” and “-” pads. · Rear left “…” display advances one LED for each test to identify which test is being performed.
Diagnostic Mode Procedures
LED Test · All LED indicators for all control zones are on. LOCK LED, all segments of the Timer display, HOT display and all BOOST LEDs are on. · Front left control zone SIM/MLT, “…” or HI pads cycles LEDs to on, dim, or off. · One “.” displayed on the left rear control zone indicates LED test is running. · “+” pad engages Unit Reconfiguration.
Unit Reconfiguration and Unit Derating b1. Unit Reconfiguration – software version below version V.10 · Touch “+” pad during the LED test. · Two “.” are displayed on left rear control zone. · CF is displayed in the 2-digit display. · Only one “.” is displayed in the front left control zone. · Press and hold “+” and “-” pads together for 3 seconds activates the unit reconfiguration. · Acceptance beep is sounded after the requisite press-and-hold and the cooktop resets. · “-” pad engages LED Test. · “+” pad engages Control Temperature Readout. b2. Fully Rated to Derated and Unit Reconfiguration – software version V.10 or higher · Touch “+” pad during the LED test. · Two “.” are displayed on left rear control zone. · CF is displayed in the 2-digit display. · Front left control zone SIM/MLT, or HI pads cycles between “fully rated,” or “derated” mode. · If first “.” is brighter then the second “.” on the front left control zone, unit is in “fully rated” mode. · If second “.” is brighter then the first “.” on the front left control zone, unit is in “derated” mode. · Press and hold “+” and “-” pads together for 3 seconds activates the unit reconfiguration, and sets the unit in the “fully rated” or “derated” mode. · Acceptance beep is sounded after the requisite press-and-hold and the cooktop resets. · “-” pad engages LED Test. · “+” pad engages Control Temperature Readout.
NOTES:
· Reconfiguring the unit resets the communication between the generator and control board software. Reconfiguring the unit is recommended to be performed for any electronic communications error and after replacing a generator or control board.
· The power rating of the unit does not have to be changed to perform unit reconfiguration. · Left rear “.” remains at two and CF is displayed in the 2-digit display during the unit reconfiguration. · After replacing a generator the LOCK light does not illuminate. The unit is locked.
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Troubleshooting
Induction Range (IR) Series
Control Temperature Readout · Touch “+” pad during Unit Reconfiguration. · Three “.” displayed on left rear control zone. · 2-digit display shows the ambient control temperature in °C. · Over 99° C (210° F), the decimal point of the 2 digit display turns on to indicate the temperature is 100° C or higher. · “-” pad engages Unit Reconfiguration. · “+” pad engages Heat Sink Temperature.
Heat Sink Temperature Test
· Touch “+” pad during the Control Temperature Readout.
· Four “.” displayed on left rear control zone.
· 2-digit display shows the current heat sink state.
· State is temperature based and not the actual heat sink temperature.
· “0” temperature is 176° F cooktop works correctly.
· “1” temperature is > 176° F boost is disabled for affected zones.
· “2” temperature is > 192° F and 201° F affected zone limited to 60% power.
·
temperature is > 201° F and 210° F zones limited to 40% power.
· “3” temperature is > 210° F all affected zones turned off
Heat Sink Performance
· Front left control zone SIM/MLT and HI LEDS are on. · Touch the front left control zone SIM/MLT or HI pad cycles through the heat sink temperatures. · Left front control zone displays dimmed 1, 2, or 3 “.” to indicate heat sink number, with one `.’ on to indi-
cate which heat sink temperature is displayed. · First LED is generator board #1. · Second LED is generator board #2. · Third LED is generator board #3. · A touch of the “-” pad engages the Control Temperature Readout. · A touch of the “+” pad engages the Coil Temperature test.
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Induction Range (IR) Series
Troubleshooting
Coil Temperature Test · Touch “+” pad during the Heat Sink Temperature test. · Five “.” are displayed on left rear control zone. · 2-digit display shows the coil temperature in °C. · Over 99° C (210° F), the decimal point of the 2 digit display turns on to indicate the temperature is 100° C (210° F) or higher. · Front left SIM/MLT and HI are on. Touch the front left control zone SIM/MLT or HI pad cycles through the coil temperatures. · Front left control zone displays dimmed 1, 2, 3, 4, or 5 “.” to indicate coil number, with one “.” on to indicate which coil temperature is displayed (See Figure 4-1 for coil locations). · First LED is coil assembly and NTC #1 · Second LED is coil assembly and NTC #2 · Third LED is coil assembly and NTC #3 · Fourth LED is coil assembly and NTC #4 · Fifth LED is coil assembly and NTC #5 · “-” pad engages the heat sink temperature test. · “+” pad engages the error code indicator.
Coil Temperature Performance Impact · 160° C (320° F) boost is disabled for affected zones. · 240° C (464° F) affected zones are limited to 60% power. · 260° C (500° F) affected zones are turned off. · 285° C (545° F) all zones are turned off.
Error Code Indicator · Touch “+” pad during the Coil Temperature test. · Six “.” are displayed on left rear control zone. · Front control zone shows 0-8 dimmed “.” based on how many error codes are logged. · Fully lit LED indicates which error is being displayed in the 2-digit display. · If only a single error has been logged, only a single fully lit LED is displayed. · If no errors are logged SIM/MLT, HI, and “.” are not displayed and “- -” is displayed in the 2-digit display. · 2-digit display shows the corresponding error code stored in memory. · Front left SIM/MLT and HI are dimmed. A touch of the front control zone SIM/MLT or HI pads cycles through the stored error codes. · Touch and hold TIMER pad for 5 seconds to clear error code history. · Clearing the error code history is only possible if at least one error was logged. · Clearing the error code history is confirmed by a double beep. · If an error is currently present when the log is cleared, it immediately regenerates an error code. · “-” pad engages the Coil Temperature test. · “+” pad engages Showroom Mode menu.
Figure 4-1. Coil Assembly Locations 4-5
#827176 – Revision A – October, 2016
Troubleshooting
Induction Range (IR) Series
Showroom Mode · Touch “+” pad during the Error Code Indicator. · Seven “.” displayed on left rear control zone. · Touch the left front control zone HI pad to engage showroom mode. · SH is displayed in the 2-digit display when in showroom mode. · Touch the left front control zone SIM/MLT pad to disengage showroom mode. · “-” pad engages the Error Code indicator. · “+” pad engages the Software Version indicator.
Software Version Indicator · Touch “+” pad during Showroom Mode. · Eight “.” are displayed on left rear control zone. · 2-digit display cycles to show the software version of the control. · “-” pad engages the Showroom Mode menu.
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Induction Range (IR) Series
Troubleshooting
General Errors Table
Code
Description
Test/Cause
Action
03
Continuous Sensor Activation Liquid or cookware on control 1. Remove cookware from control.
glass
2. Clean control glass.
20
Wrong Connection
Input voltage > 300 Volts 1. Cycle unit power.
2. Check power supply wiring.
3. Perform unit reconfiguration.
4. Replace induction cooktop
wiring harness.
4. Replace control board.
22
Pad Error
None
1. Cycle unit power. 2. Reseat comm cable(s). 3. Perform unit reconfiguration. 4. Replace control board.
30
Data Flash Error
(result of flashing software)
None
1. Cycle unit power. 2. Perform unit reconfiguration. 3. Replace control board.
31
Invalid Configuration
None
1. Perform unit reconfiguration. 2. Replace generator.
NOTE: After installing a new generator, the LOCK light does not illuminate. The unit is in LOCK and can be placed in Diagnostics.
36
TC temperature too high Control Temperature Readout 1. Test fan operation.
2. Ensure fan vent is not blocked.
3. No large pot or pan overlapping
the control area.
4. Direct sunlight or heat lamps not
shinning on controls.
5. Perform unit reconfiguration.
6. Replace control board.
39
Controller Options Error
None
1. Cycle unit power. 2. Inspect and reseat comm
cables. 3. Perform unit reconfiguration. 4. Replace control board.
47
LINCommunication Error
None
1. Inspect control board. 2. Inspect and reseat comm
cables. 3. Perform unit reconfiguration. 4. Replace control board.
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Troubleshooting
Induction Range (IR) Series
Cooking Zone Specific Errors
Code
Description
U400
Over Voltage
Test
1. Test L1 to Ground 2. Test L2 to Ground 3. Test L1 to L2
Action
1. L1 to Ground and L2 to Ground 132 VAC.
2. L1 to L2 265 VAC. 3. Confirm single phase circuit. 4. If electrical problem report issue
to consumer. 5. Peform unit reconfiguration. 6. If no issue found replace gener
ator.
E2
Coil temperature too high
Coil temperature test
1. Test fan operation. 2. Ensure fan vent is not blocked. 3. Replace coil assembly.
E4
Configuration implausible
(control board issue)
None
1. Cycle unit power. 2. Perform unit reconfiguration. 3. Replace control board.
E6
Power supply error
1. Test L1 to Ground
1. L1 to Ground and L2 to Ground
2. Test L2 to Ground
between 90 VAC and 132 VAC.
3. Test L1 to L2
2. L1 to L2 between 180 VAC and
4. Test cooktop cabinet to
265 VAC.
adjacent ground receptacle 3. Resistance to ground should be
close to zero ohms.
4. Report issue to consumer.
5. Perform unit reconfiguration.
6. Check generators and replace
as needed.
E7
Unspecified error
(usually accompanied by
another error)
None
1. Perform unit reconfiguration. 2. Cycle unit power.
E8
Fan error
Test fan
1. Test fan operation – see page 4-9.
2. Ensure fan vent is not blocked. 3. Perform unit reconfiguration. 4. Replace generator.
E9
Temperature monitoring error
None
1. Cycle unit power. 2. Perform unit reconfiguration. 3. Replace generator.
EA
Controller error
None
1. Cycle unit power. 2. Perform unit reconfigureation. 3. Replace control board.
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Induction Range (IR) Series
Troubleshooting
Fan Test
Each generator board has a 12 VDC fan. It is not reliable to check the fan by measuring the resistance, it will not be consistant.
1. Turn the coil assembly on at Boost for each generator board. The fan starts as soon as in Boost. 2. Use a 9 volt battery to energize the fan. Black wire to negative and red wire to positive. 3. Assure the fan vent is not blocked. 4. There is no minimum distance to non-combustible surfaces below the cooktop. However, a structure too
close to the fan vents, or an appliance that is getting warm can affect the coil NTCsensors. If possible remove the structure from beneath the cooktop and test again.
HOT Indicator Stays On
One of the coil assembly NTC reading 50° C (122° F) or above causes the HOT indicator to come on.
1. Check coil assembly NTCtemperatures in Diagnostics. They should be consistant. A defective NTC reading higher than the actual temperature would require replacing that generator.
2. A warm coil temperature can be caused by heat on the coil assembly such as from direct sunlight or a hot pan sitting on the coil assembly.
3. Cycle unit power. 4. Assure fan is operating and fan vent is not blocked. 4. If no coil assembly NTC is reading 50° C (122° F) or above, replace the control board. A damaged control board
or stuck HOT indicator may cause the issue.
No Pan Detection
The pan detection system is an integral part of the generator. Pans without sufficent ferrous metal in the construction of the pan heat slowly, may cause burner or generator damage and cause error codes E6 or E47.
1. A magnet must stick to the bottom of the cookware and it is best if the magnet sticks across the entire bottom of the cookware.
2. Pans should be the same size as the coil assembly. Pans that are too large, or too small may not be sensed or not heat properly.
3. Cookware should be flat and smooth on the bottom, and have no patterns. 4. Check voltage to the cooktop. See error code E6.
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Troubleshooting
Induction Range (IR) Series
OVEN DIAGNOSTIC MODE
Diagnostic Mode allows the inspection of the functionality of the oven controller and relay board. In Diagnostic Mode the last seven errors that have occurred can be viewed. The ECH displays the last error code recorded in the Cook Time digit area, with Stop Time digits displaying the number of the error. The software version is displayed in the Time of Day digits and the current oven cavity temperature is shown in the display window of the selector knob.
Initiating Diagnostic Mode
Diagnostic Mode Usage: · Diagnostic mode times out two minutes after the
last key stroke. · To clear error codes once unit has been repaired,
press the CLEAR key while in Diagnostic Mode. · To exit Diagnostic Mode, press the ENTER key. · The ambient cavity temperature is displayed in the
selector knob window. · The software version is displayed in the Time of
Day digits.
To initiate Diagnostic Mode (See Figure 4-2):
1 Knob assembly must be in the OFF position. 2 Press and hold CLOCK and TIMER for 3 seconds. 3 Turn the selector knob to the right seven separate
times, toggles through error code 1 to 7 (See Figure 4-3). 4 To return to error code number one, turn the selector knob to the left seven separate times.
ROAS T V
BROIL
ROAST BROIL V
CO N
CO N
CLEAN
N E O
BROIL ROAST ST
BROIL ROAST ST
OFF BAKE
BAKE
LO HI
N E O
CLEAN
Figure 4-2. Diagnostic Mode
OFF BAKE
BAKE
LO HI
Figure 4-3. Error Codes
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Induction Range (IR) Series
Troubleshooting
Induction Range Oven Errors
The first table contains error codes that are displayed in the selector knob, and refer to specific component issues. The second table contains general errors, including some that could be displayed in the selector knob. After the tables are test procedures for various components.
ERROR CODE 01
02
03 04 07
08 09
0B 0C 0E
ERROR CODES
POSSIBLE CAUSE
Door Lock or Unlock Switches not sensed · within 60 seconds while driving the door · lock motor
TEST / ACTION
Cycle door lock in diagnostic mode. Ohm door lock switches on Motorized Door Lock (MDL).
Over temperature occurs when the oven · reaches a temperature of 630 °F for an unlocked door and 950°F for a locked door
Ohm RTD sensor. If RTD is good replace oven controller.
Open circuit detected on RTD Oven Sensor · Ohm RTD sensor. If RTD is good replace oven controller.
Shorted circuit detected on the RTD Sensor · Ohm RTD sensor. If RTD is good replace oven controller.
SPI Communication lost from ECH to the · Control Board as reported by Control Board
· ·
Code reflects that the ECH cannot find the Control Board. Replace cable from control board to ECH. Replace ECH if replacing cable does not correct the issue.
EEPROM checksum is incorrect. Checked · Replace control board. at power up
Meat probe being sensed as shorted
· Initiate diagnostic mode and check meat probe.
· Ohm meat probe.
Analog to Digital error during calibration phase
· Replace control board.
Communication lost with control board
· Replace control board.
Power relay shorted, sensed as closed when should be open
· Replace relay board
Failure of element circuit
· Replace relay board
Failure of relay drive circuitry
· Replace relay board
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#827176 – Revision A – October, 2016
Troubleshooting
Induction Range (IR) Series
PROBLEM
A. Oven Does Not Go Into Cooking Mode
POSSIBLE CAUSE
Defective wires from ECH to knob assem- · bly selector switch
·
TEST / ACTION
Check connectors by disconnecting and reconnecting each end. Ohm wires on cable from ECH to knob assembly selector switch.
Defective knob assembly selector switch · Replace knob assembly selector switch.
B. Oven Does Enter Cooking Mode But No Display In Oven Selector Knob
Defective selector knob
·
Loose or defective wire harness or connec- ·
tion from selector knob selector switch to
ECH
·
Replace the selector knob
Check connectors by disconnecting and reconnecting each end. Ohm wires on cable from ECH to selector knob selector switch.
Defective selector knob selector switch
· Replace selector knob selector switch.
Defective ECH
· Replace ECH.
C. Selector Knob Continuously Selector knob stuck Increase Or Decreases Temperature Reading
· Remove selector knob and reinsert. · Turn knob to HI or LO position and let go. · If not corrected or returns replace selector
knob selector switch.
DD. “PF” Displayed In Selector Unit had a power failure Knob
· Turn knob assembly to any cooking mode, then back to OFF to reset.
E. “Hot” Displayed In Selector Oven temperature too hot for cooking
Knob
mode selected
· Check oven temperature in diagnostic mode.
· Open oven door to cool oven cavity temperature.
Loose or defective connection at J2 con- · Check connections at J2. Unplug and
nector for the RTD on oven controller
reseat.
RTD out of specification
· Ohm RTD sensor.
If “Hot” is displayed, a mode was attempted · while the oven temperature was above the mode threshold.
A single long beep occurs. Allow the oven to cool down, then select mode and temperature desired.
F. “Err” Displayed In Selector Error code has been logged into oven con- · Initiate diagnostic mode to displayed error
Knob
troller
code.
G. “SAb” Displayed In Selector Unit in sabbath mode Knob
· Turn oven bezel to OFF to exit.
H . No Display In ECH
Temperature knob not inserted properly into selector switch
· Pull selector knob out and reinsert.
ECH needs to reboot
· Turn circuit breaker off for 5 seconds, then turn back on.
Loose or defective wire connection(s)
· ECHTroubleshooting Flow Chart..
Defective Relay Board
· ECHTroubleshooting Flow Chart.
Defective Oven Controller
· ECHTroubleshooting Flow Chart.
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Induction Range (IR) Series
Troubleshooting
PROBLEM
I. Unresponsive Key Pad(s)
POSSIBLE CAUSE
Unit in Sabbath mode ECH needs to reboot
J. ECH Doesn’t Flip Out
Loose/defective cable connection from oven controller to ECH
Defective key pad(s)
Defective ECH
ECH rubbing on control panel
TEST / ACTION
· Turn knob assembly to OFF to exit.
· Turn circuit breaker off for 5 seconds, then turn back on.
· Unplug cable connections and ohm cables, if defective, replace cable.
· Replace ECH.
· Replace ECH.
· Recenter ECH with adjustment screws.
Defective ECH
· Replace ECH.
K. Unit Beeps When Any Area Of The ECH Is Touched
Poor ground between ECH and unit
· Check continuity between ECH and unit, while opening and closing the ECH.
Spring on ECH binding on mounting brack- · Re-center spring in-between bushings. et and housing
Broken spring on ECH mounting bracket · Replace ECH.
L. Long Preheat
Defective bake element
· Check for error codes in diagnostic mode. · Use relay board testing procedure to test
element.
M. No Heat
Defective Door Switch
· Replace Door Switch.
Loose or defective wire connection
· Repair or replace wire connections.
Note: Door Switch does not effect Open element elements in Sabbath Mode
· Check for error codes in diagnostic mode. · Use relay board testing procedure to test
element.
Shorted element
· Check for error codes in diagnostic mode. · Use relay board testing procedure to test
element.
TCO open or tripped
· Ohm limit, replace if defective. Reset limit.
Relay board failure
· Use relay board testing procedure to test element.
N. Call For Heat (CFH)
Oven cavity too hot
· Open oven door to cool oven cavity.
Indicator Light Does Not
Light When A Cooking Mode Loose or defective wire connections from · Check wire connections.
Energized
ECH to “CFH” LED
Defective ECH
· Replace ECH.
Defective LED
· Replace “CFH” LED.
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Troubleshooting
Induction Range (IR) Series
PROBLEM
N. No Broil
O. Oven Temperature Too High or Too Low
P. Temperature Probe Not Working
Q. Cooling Fan Does NOT Work
R. Cooling Fan Noisy S. Convection Fan Does
Not Work T. Convection Fan Noisy
POSSIBLE CAUSE
Loose or defective wire connection
TEST / ACTION
· Repair or replace wire connections.
Open element
· Check for error codes in diagnostic mode. · Use relay board testing procedure to test
element.
Shorted element
· Check for error codes in diagnostic mode. · Use relay board testing procedure to test
element.
Open or Shorted RTD
· Check for error codes in diagnostic mode.
Thermal Cut Out open or tripped
· Ohm limit, replace if defective. Reset limit.
Relay board failure
· Use relay board testing procedure to test element.
Customer using wrong temperature
· Refer to Use & Care Guide for operation.
User Preference Offset (UPO) miscalibrat- · Calibrate oven temperature and set UPO. ed
Defective RTD Sensor
· Ohm RTD sensor. · If RTD is good, replace oven controller.
Wrong cooking mode for probe
· Refer to Use/Care Guide for operation.
Probe not inserted all the way into the receptacle
· Reinsert probe into receptacle. · Check for errors in diagnostic mode.
Loose or defective wiring
· Repair or replace wiring.
Defective probe switch
· Replace probe switch.
Defective probe
· Ohm probe, replace if defective.
Loose or defective wiring
· Repair or replace wiring.
Defective cooling fan
· Check for error codes in diagnostic mode. · Check fan motor winding for continuity.
Air diverter bracket loose
· Tighten air diverter bracket screws.
Defective cooling fan motor
· Replace cooling fan.
Defective Door Switch
Replace Door Switch.
Loose or defective wire connection
Repair or replace wiring.
Defective convection motor
Replace convection fan assembly.
Fan blade out of balance
Replace convection motor assembly.
Loose fan blade
Tighten nut for fan blade.
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Induction Range (IR) Series
Troubleshooting
PROBLEM
U. Convection Fan Does Not Shut Off When Oven Door Open
POSSIBLE CAUSE
Unit in sabbath mode Defective door switch
V. Oven Light Does NOT Work
Defective bulb Loose or defective wiring
Defective door switch (if both bulbs out)
Defective key pad (if both bulbs out)
W. Door Does NOT Lock In Self-Clean Mode
Defective motorized door latch assembly
X. Circuit Breaker Repeatedly Circuit Breaker not size properly Trips Defective circuit breaker
Excessive Amp Draw
TEST / ACTION
· Turn knob assembly to OFF to exit.
· Check door switch.
· Replace bulb.
· Repair or replace wiring.
· Replace motorized door latch assembly.
· Replace ECH.
· Ohm motorized door latch switches and motor.
· Confirm circuit breaker is 50 amp breaker. · Induction cooktop software V10 or higher
allows the induction cooktop to be derated. Derate unit per Section 2 – Electronics. · An old or worn circuit breaker trips sooner than it should under the maximum amp draw, replace circuit breaker.
NOTES: · It is recommend that the unit be derated
prior to replacing a worn 50 amp breaker. · The induction cooktop software can be
upgraded to Version 10 by replacing the control board.
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#827176 – Revision A – October, 2016
Troubleshooting
Induction Range (IR) Series
ECH TROUBLESHOOTING FLOW CHART
Step 1. Check Wire Connections
Check wire connections at J4 connector on oven controller to J1 connector of relay board. Unplug both ends and reseat.
Check wire connections at J11A connector on oven controller to J1 connector on ECH, unplug both ends and reseat.
Check wire connections at E1 (L1) and E2 (N) connector on relay board, unplug both ends and reseat.
1 3 5 7 9 11 13 15 17 19 21
Step 2. Testing Voltage to Relay Board
Using a volt/ohm meter set to read AC voltage, place one meter probe to E1 (L1) and one meter probe to E2 (N).
24
Do you have 120 VAC
No
from E1 (L1) to E2 (N)?
Yes
Check voltage at L1 and N on terminal Block.
Do you have 120 VAC ±10% from L1 to N?
Yes
6 8 10 12 14 16 18 20 22 Figure 1. J4 and J5 Configuration
Check for loose or defective wiring to unit
No
from terminal block to junction box/power
cord. May have to call an electrician.
Unit has loose or defective wire(s) between L1 of terminal block and E1(L1) on relay board or N of terminal block and E2 (N) on relay board. Repair/Replace wires.
12 11 10 9 8 7 6 5 4 3 2 1 Figure 2. J11a Configuration
Step 3. Testing Voltage at Oven Controller
Using a volt/ohm meter set to read DC voltage, at the J11A connector, place one meter probe to pin 1 and one meter probe to pin 2.
NOTE: Following checks are performed with cables connected unless otherwise noted.
Do you have ~37 VDC at
J11A from Pins 1 to 2 on the
No
control board? (See Figure 2)
Remove flex ribbon
cable from J11a.
No
(Re-seat ribbon cable
and retest.)
Do you have ~37 VDC
at J4 from pin 14 to
No
17 on the control board?
(See Figure 1)
Do you have ~37 VDC at J1 from pin 14 to 17 on the relay board?
Yes
Yes
Step 4. Testing Voltage at ECH
Replace Control Board
Using a volt/ohm meter set to read DC voltage, at J1 Connector, place one meter probe to pin 1 and one meter probe to pin 2.
Do you have 30 to 34 VDC at J1 from pin 1 to pin 2?
Unplug wire harness from ECH to oven
No
controller. Now, reconnect wire harness to ECH and oven controller making sure
to get good connection.
Yes
No
Replace Comm Cables
Replace Relay Board
Yes
Do you have ~ 6 VDC pin 1 to pin 5 on Selector Switch wire harness to the Selector Knob side Selector Switch?
Yes
Replace ECH
Is display working now?
No
Replace wire harness
Yes, problem fixed
No
Ohm the ECH to
Selector Switch wire
harness from end to end.
Is the ECH to
Selector Switch
Yes
wire harness good?
Replace ECH
No Replace wire harness
#827176 – Revision A – October, 2016
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Induction Range (IR) Series
TESTING THE OVEN RELAY BOARD
Troubleshooting
Element Testing
In diagnostic mode, the knob assembly can be turned to the mode listed below to activate the element. The Call For Heat (CFH) LEDilluminates if the control board detects current running through the element circuit.
Turn Knob Assembly To: Stone Clean
Convection Roast Convection Broil Convection Bake
Relay(s) Activated Left Convection Element Right Convection Element
Inner Bake Element Broil Element
Outer Bake Element
Response CFH Indicator Light Illuminates CFH Indicator Light Illuminates CFH Indicator Light Illuminates CFH Indicator Light Illuminates CFH Indicator Light Illuminates
RTD Testing
In diagnostic mode, the RTD temperature is shown in the display window of the selector knob. If the RTD is open, “Err 03” is shown in the display of the ECH. If the RTD is shorted, “Err 04” is shown in the display of the ECH. If the temperature displayed on the selector knob does not appear to be correct, the RTD can be ohmed out. At 75° F the resistance should be 1091 ohms.
Probe Testing
In diagnostic mode press PROBE key on the ECH. This switches the selector knob display to read the probe temperature. If the probe has not been inserted, “out” is shown as the probe temperature. If the probe is shorted, “Err 09” is shown in the display of the ECH. If the temperature displayed on the selector knob does not appear to be correct, the probe can be ohmed out. At 90° F the resistance should be 34,000 ohms.
Knob Assembly Selector Switch Test
The chart to the right can be used to verify proper functionality of the oven selector switch. Use an Ohm Meter to perform these continuity tests.
Switch Position OFF
Conv. Bake
Pin 7 X
The wire harness must be disconnected from the ECH assembly to prevent inaccurate readings.
Conv. Broil
X
Conv. Roast
As you rotate the switch to the position of the chart you should find continuity between Pin 6 and the pins marked with an “X”.
Convection Self Clean
Stone
ECHto selector switch voltage:
Roast
X
Broil
X
Knob Assembly: Pin 1 to Pin 6 ~ 6.2 VDC. Selector Knob: Pin 1 to Pin 5 ~ 6.2 VDC.
Bake
Pin 8
X X X X X X
Pin 9 Pin 10
X XX
X X X X
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#827176 – Revision A – October, 2016
Troubleshooting
Induction Range (IR) Series
Fans and Motors
In diagnostic mode, the knob assembly can be turned or a key pressed on the ECH to activate a fan or a motor. The fan and motor relays close to complete a 120 VAC circuit through a specific fan or motor. If the oven controller detects the functionality through switches, the Call For Heat (CFH) indicator light illuminates.
Turn Knob Assembly or
Press Key on Electronic Control Housing Broil Roast Bake Cook Time Stop Time Clock
Probe
Clear Enter
Relay(s) Activated
Right Convection Fan Left Convection Fan
Oven Light Cooling Fan on Low Cooling Fan on High
Motor Door Lock (MDL)
Probe
Action
Response
Right Convection Fan Turns ON
Left Convection Fan Turns ON
Activates Oven Lights
Cooling Fan Turns ON
Cooling Fan Turns ON
MDL Switch in Closed Position
MDL Switch in Transition
MDL Switch in open Position
Right Convection fan ON
Left Convection Fan ON
Oven Light Turns On Cooling Fan On At Low Speed Cooling Fan On At High Speed
“A” Icon Appears on ECH
No Icon is Displayed on ECH
“P” Icon Appears in ECH
Meat Probe Temperature is Shown in Display Window of
Selector Knob Clears All Stored Errors from
Control Board Exits Diagnostic Mode
Ohm Testing Elements at Relay Board
At the relay board, disconnect the wire from the terminal DLB. It does not take the TCO out of the circuit. If no ohm reading is obtained from DLB to any element wire, then the TCOis suspect.
Right Convection Element: Left Convection Element: Outer Bake Element: Inner Bake Element: Broil Element:
RCVT wire to DLB wire LCVT wire to DLB wire O BAKE wire to DLB wire I BAKEwire to DLB wire BROIL wire to DLB wire
#827176 – Revision A – October, 2016
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Documents / Resources
 | 827176 Induction Range |
References
- User Manualmanual.tools