Rinnai I-Series Plus Condensing Boiler
Technical Specifications, Diagnostics, and Parts Guide
Performance Data
To View Performance Data:
- Press and hold the [Down] button for two seconds (Fig 1).
- While holding the [Down] button, press and hold the "Domestic Hot Water" (DHW) button (hold both buttons at the same time) (Fig 1).
- Use the [Up] and [Down] buttons (Fig 2) to scroll to the desired information described in Table 1(A). Performance Data.
- The data for the performance number automatically appears in the display (Fig 3).
- To exit performance data, repeat step 2 above.
Fig 1. "Down" and "DHW" Buttons
Fig 2. "Up" and "Down" Buttons
Fig 3. Data Appearing in Display
Table 1(A). Performance Data
| # | Data | Unit |
|---|---|---|
| 01 | Water Pressure | PSI/bar¹ |
| 03 | Supply Temperature | °F/°C¹ |
| 04 | Return Temperature | °F/°C¹ |
| 05 | Freeze Protection Temperature | °F/°C¹ |
| 06 | Exhaust Temperature | °F/°C¹ |
| 11 | Fan Frequency | Hz |
| 17 | Venturi Position | 0=Closed, 1=Open |
| 18 | Venturi Cycles | x100 |
| 20 | Pump Cycles | x100 |
| 21 | Pump Hours | x10 |
| 22 | Pump for Boiler | 0=OFF, 1=ON |
| 23 | Pump for System (Pumps 1-3) | 0=OFF, 1=ON |
¹ See "Units of Measurement" section to right.
Table 1(B). Pump for System (1-3)
| Pump for System (1-3) | System Pump | ON | OFF |
|---|---|---|---|
| Pump 1 | _ _ _ | 1 | _ _ _0 |
| Pump 2 | _ _1_ _ | _ _0_ _ | |
| Pump 3 | _1_ _ _ | _0_ _ |
Electrical Diagnostics
Important Safety Notes: There are a number of (live) tests required when performing electrical diagnostics on this product. Proceed with caution at all times to avoid contact with energized components inside the boiler. Only trained and qualified service technicians should attempt to repair this product. Before checking for resistance readings, disconnect the power source to the unit and isolate the item from the circuit (unplug it).
Electrical Diagram: Refer to the Wiring Diagram attached to the back of the boiler front cover.
Flame Rod: Place one lead of your meter to the flame rod and the other to the ground. When the unit is attempting to ignite, you should read more than 2 VAC.
Amp Fuses: This unit has two (2) amp glass fuses located on the PC Board. Remove the fuses and check continuity through it. If you have continuity through each fuse, then it is functioning. Otherwise, the fuse is blown and must be replaced.
Table 3. Diagnostic Points
| COMPONENT | WIRE COLOR | VOLTAGE | RESISTANCE | PCB CONNECTOR | PCB PIN |
|---|---|---|---|---|---|
| Power Supply | Black-White | AC108~132V | N/A | CN200 | 1-3 |
| Flame Rod | Yellow-Body | More than 0.5VAC | N/A | CN8 | 20 |
| Spark Electrode | Black-Body | More than 0.5VAC | N/A | CN7 | 1 |
| Combustion Fan | White-Black | 11~14VDC* | N/A | CN8 | 2-3 |
| Red-Black | 7~48VDC* | N/A | CN7 | 18-19 | |
| White-Black | 2~14VDC* | N/A | CN7 | 16-18 | |
| Yellow-Black | 11~14VDC* | N/A | CN7 | 17-18 | |
| Venturi Control Device | Blue-Black | N/A | 350~550Ω | CN11 | 1-9, 2-9, 3-9, & 4-9 |
| Red-Black | N/A | CN11 | 8-11, 8-12, 8-13, & 8-14 | ||
| Black-Black | 4~6VDC* | N/A | CN11 | 8-16 & 6-7 | |
| Gas Solenoid Valve | Yellow-Black | 11~14VDC² | 15~25Ω | CN8 | 11-12 |
| Exhaust Thermistor | White-White | N/A | 59°F: 11.4-14kΩ 86°F: 6.4-7.8kΩ 113°F: 3.6-4.5kΩ 140°F: 2.2-2.7kΩ 221°F: 0.6-0.8kΩ Disconnect the connector and measure at thermistor side. | CN7 | 3-6 |
| Heat Exchanger Thermistor | White-White | N/A | CN7 | 11-14 | |
| Supply Thermistor | White-White | N/A | CN7 | 5-6 | |
| Return Thermistor | White-White | N/A | CN7 | 8-10 | |
| Freeze Protection Thermistor | Black-Black | N/A | 32°F: 38k-43k 50°F: 22k-26k 68°F: 14k-17k Disconnect the connector and measure at thermistor side. | CN7 | 7-10 |
| Transformer | White-Grey | AC108~132V | N/A | CN202 | 1-2 |
| Red-Red | AC20~30V (Possible to measure at Output terminal as substitute position) | N/A | CN202 | 3-4 | |
| Overheat Switch | Black-Black | Less than 1VDC | Less than 2Ω | CN8 | 4-15 |
| Water Pressure Sensor | Red-Black | 11~14VDC | N/A | CN8 | 5-9 |
| Yellow-Black | 0 kPa: 655-745 mV; 200 kPa: 2,155-2,245 mV; 400 kPa: 3,655-3,745 mV | N/A | CN8 | 1-9 | |
| Water Level Electrode | White-White | 11~14VDC | N/A | CN8 | 13-14 |
| Integrated Pump | White-Black | AC108~132V | N/A | CN101 | 1-2 |
| Control Panel | Black-Black | 11~14VDC | N/A | CN6 | 1-2 |
¹ See "Units of Measurement" section to right.
² When the unit is operating.
Table 4. PC Board Buttons
| Item # | PC Board Switch # | Primary Function | Notes |
|---|---|---|---|
| 1 | Button 1 | Parameter Setting Mode | Refer to section "12.4 Parameter Settings" in Boiler Installation and Operation Manual. |
| 2 | Button 2 | Deaeration Mode | Refer to section "10. Commissioning" in Boiler Installation and Operation Manual. |
| 3 | Button 3 | Data Transfer Mode/ Test Combustion Mode/ Flushing Mode | This is for transferring PCB data when replacing the PCB. Refer to the instructions included in the replacement parts. Also, this is used for setting the boiler into forced combustion mode and flushing mode. |
Fig 4. PC Board Buttons
Parameter Settings
To access the parameter settings:
- Press and hold the SW 1 Button on the PC Board for five seconds (Fig 5). "00-A" appears on the display (Fig 6).
- Press the [Up] or [Down] arrows to select a parameter setting. Then, press the "Select" button (Fig 7).
- Press the [Up] or [Down] arrows to change the selection for the setting number (such as 11-A or 11-b). Then, press the "Select" button (Fig 8).
- To exit parameter settings and enter normal operation mode, press and hold the SW1 Button on the PC Board.
Fig 5. SW 1 Button on PC Board
Fig 6. "00-A" shown in display
Fig 7. "Up," "Down" and "Select" Buttons
Fig 8. "Up," "Down" and "Select" Buttons
For more information on parameter settings, refer to the "I-Series Plus Condensing Boiler Installation and Operation Manual."
Table 5. Parameter Settings
| Parameter # | Setting Description | A (Default) | b | C | d | E | F | H |
|---|---|---|---|---|---|---|---|---|
| 00 | Outdoor Temperature Sensor: Enables or disables the outdoor temperature sensor. | In Use | Not In Use | |||||
| 01 | Outdoor Reset Curve: (*) This parameter shows up only when selecting Outdoor Temperature Sensor "In Use" as selecting parameter number 00. For selecting outdoor reset curve, see below: Curve 1: Standard baseboard, high efficiency air handler, cast iron or panel radiators, Curve 2: Staple up radiant., Curve 3: High temperature air handler or undersized baseboard. Curve 4: Low Mass Radiant, Curve 5: High Mass Radiant, Curve 6: Radiators, Curve 7: Custom curve based on customer input. | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 02 | Boost: Available when parameter 00 is selected as "A." Boost Mode increases the CH set temperature above the outdoor reset curve target when the boiler has been running on an unusually long call for heat. | 30 Minutes | 60 Minutes | |||||
| 03 | Maximum Outdoor Temperature: Available when parameter 00 is set to as "A." Sets maximum outdoor temperature the boiler will fire in CH mode and can prevent boiler from firing in warm outdoor temperatures. | No Maximum | 77°F (25°C) | |||||
| 04 | Service Soon: SS is a time-based service indicator set during installation. | Disabled | 0.5 Year | 1 Year | 2 Years | |||
| 05 | Pressure Indication on Controller Panel: The current pressure will cycle on the controller display. If an external pressure gauge is present, it is permissible to change the setting to "No." | Yes | No | |||||
| 06 | De-Rate: This parameter is to limit maximum input when it is necessary. | No | Setting 1 | Setting 2 | ||||
| 28 | Indirect Tank: Enables the Indirect Tank Function for Pump 4. | On | Off | |||||
| 29 | Indirect Tank Thermistor/Thermostat Selection: Selects the method of controlling the indirect tank. | Thermostat | Thermistor | |||||
| 30 | Indirect Tank Supply Temperature with Thermistor Control: This parameter is available when parameter number 28 is selected as "A" and parameter number 29 is selected as "b." This selects the supply temperature for the indirect tank when using a thermostat. 180°F (Default) is the maximum supply temperature. The higher the supply temperature to the tank, the quicker the tank will heat up. If this temperature is too high, select other settings as appropriate. Ensure the indirect tank supply temperature is 18°F (10°C) higher than the set point temperature of the tank thermostat. | 180°F (82°C) | Tank Setting Temperature +18°F (10°C) | |||||
| 31 | Indirect Tank Supply Temperature with Thermostat Control: This parameter is available when parameter number 28 is selected as "A" and parameter number 29 is selected as "A." This selects the supply temperature for the indirect tank when using a thermostat. 180°F (Default) is the maximum supply temperature. The higher the supply temperature to the tank, the quicker the tank will heat up. If this temperature is too high, select other settings as appropriate. | 180°F (82°C) | 160°F (71°C) | 140°F (60°C) | ||||
| 32 | Allowed indirect tank temperature drop before firing (with thermistor) This parameter is available when parameter number 28 is selected as "A" and parameter number 29 is selected as "b." This selects the differential temperature between the indirect tank setpoint temperature and thermistor reading. The smaller the value, the more frequently the indirect tank will call for heat. | 5.4°F (3°C) | 10.8°F (6°C) | 16.2°F (9°C) | 21.6°F (12°C) | |||
| 33 | Indirect Tank Operation Option This parameter is available when parameter number 28 is selected as "A." When a 3-Way Valve and the boiler pump are to be used for recovering the indirect tank, select "b". Only 120 VAC 3-Way Valves may be used in this application. | Use Pump | Use 3-Way Valve | |||||
| 34 | Indirect Tank Simultaneous Heating-Up This parameter is available when parameter number 28 is selected as "A" and parameter number 32 is selected as "A." This selects the operation of the indirect tank heating by priority or simultaneously with CH. When "Indirect Tank Priority" is selected, other pumps except for the indirect tank pump will not operate while the tank is being heated. When "Simultaneous Heating with Indirect Tank and CH", all pumps may operate simultaneously. When in Simultaneous mode, if the tank does not achieve the Indirect Tank Setpoint Temperature within 60 minutes, it will transition to Indirect Tank Priority. | Indirect Tank Priority | Simultaneous Heating with Indirect Tank and CH | |||||
| 35 | Indirect Tank Priority Time This parameter is available when parameter number 28 is selected as "A." This selects the time that the indirect tank will maintain priority. After this period of time passes, the indirect tank will cease to be heated and central heating will have priority. If there is still an indirect tank demand after 60 minutes passes of CH priority, indirect tank priority will begin again. | 60 Minutes | 40 Minutes | 90 Minutes | ||||
| 40 | CH Temperature Limitation to Allow Simultaneous Operation with Indirect Tank This parameter is available when parameter number 28 is selected as "A," parameter number 32 is selected as "A" and parameter number 33 is selected as "b." This enables CH setting limitation during simultaneous heating. This can prevent unintentionally supplying high temperature supply water to low water heating temperature applications such as floor heating. During simultaneous operation, the heating supply temperature is based on the indirect tank supply temperature. When "NO" is selected, make sure that the CH system and heating application is designed to allow for the high supply temperature. | Yes | No | |||||
| 41 | Linked Operation Among Each CH Pumps This parameter enables linked operation among each CH pumps. For example, when parameter b is selected and T/T 1 is active, both pump 1 and 2 are ON. The T/T wire must be connected to the T/T1 connection. This setting is primarily for an application that requires two pumps or more for one zone, such as in use with an injection loop or similar system. | No | Linked Together CH Pump 1 and Pump 2 | Linked Together CH pump 1, pump 2 and pump 3 | Linked Together CH pump 1, pump 2, pump 3 and pump 4 | |||
| 42 | Linked Operation Between Main Boiler Pump and CH Pump 1: This enables the linked operation between the main boiler pump and CH pump 1. Example: when the main pump is on, pump 1 is also on. | No | Yes (Linked together) | |||||
| 43 | Main Pump Runs When the Target Temperature is Reached: This selects the mode of the main pump running when the target setpoint is achieved. This setting is for whether running on intervals to reduce pump operation or continuously running to reduce wait time to re-fire. Intervals are 10 minutes ON and 30 minutes OFF. | Continuously | Intervals | |||||
| 44 | External Pump Runs When the Temperature is Reached: For selecting the mode of external pump running when the temperature is reached to setting. This is setting for whether stopping external pump running to reduce pump operation timing or operating as same as main pump operation to enable to deliver remained heat in heat exchanger | Same as Main Pump | Does Not Run | |||||
| 45 | External Pump Running at Freeze Protection Operation: Selects the mode of external pump running when freeze protection operation. This is setting for whether stopping external pump running to reduce pump operation timing or operating as same as main pump operation to enable to deliver remained heat to the system for keeping system piping from freezing. But it could reduce the temperature inside heat exchanger. | Does Not Run | Same as Main Pump | For Warm Room Temp | ||||
| 46 | Freeze Protection Level: This selects the freeze protection level. Selecting "b" will prevent the boiler from operating in freeze protection mode more than believed necessary. | Normal | ||||||
| 47 | The Differential Temperature From Extinguishing Fire to Fire Again: How much temperature drop is permitted by the supply water thermistor before the boiler will fire again. When selecting "Quick", the boiler will fire more frequently and achieve more temperature control | CH Setting Temperature Normal 168°F -182°F (75-82°C) 104°F -166°F (40-74°C) | Temperature Drop Quick 27°F (15°C) 15°F (8°C) | Temperature Drop Quick 15°F (8°C) 9°F (5°C) | ||||
| 48 | The Time Which Not Allow to Fire Again for CH: For selecting time which not allow to fire again for CH after shutdown burner. This is setting for whether preventing from frequently operating unit or allowing frequent operation for quick heating up again. | Normal (3 Minutes) | Quick (10 Seconds) | |||||
| 50 | Heating Eco Mode On Time This setting changes the on time of the heating Eco mode. This mode enables greater energy savings by reducing the length of time the boiler is operating. The output temperature of the boiler is slower in this mode. | 30 Minutes | 15 Minutes | |||||
| 51 | Air Handler Connection: The setting changes to enable to AH output with linking pump 3. | No | Yes | |||||
| 52 | Air Handler Post Pump Extension Setting: Extending the post Pump timing of pump 3. | 15 Seconds | 40 Seconds | |||||
| 60 | N/A: Manufacture Use Only | Manufacture Use Only | Manufacture Use Only | Manufacture Use Only | ||||
| 61 | Thermostat Usage: Changes the mode between Thermostat Usage and Central Heating Button. | Thermostat Used | CH ON button used. Boiler fires based on return water temperature. | |||||
| A0 | Gas Type: For selecting gas type when conducting gas conversion. | Natural Gas | Liquid Propane | |||||
| A1 | Model: Manufacture Use Only | Manufacture use only | Manufacture use only | |||||
| A2 | Vent Material Used: This selects the venting material used. The boiler is set from the factory to be installed in a PVC venting system. If CPVC, PP, or other approved venting is used, this may be adjusted. See the section on PVC Safety Switch for more information. | PVC | Material other than PVC: CPVC, PP, or Other. | |||||
| A3 | Altitude Setting: Sets the elevation of the boiler installation. | Level 0: 0-2,000 ft (0-610m) | Level 1: 2,001-5,400 (610-1646m) | Level 2: 5,401-7,700 ft (1,646-2,347m) | Level 3: 7,701-10,200 ft (2,347-3,109m) |
Table 2. Units of Measurement
| Units of Measurement | Temp. | Water Flow | Pressure |
|---|---|---|---|
| 1: English | °F | gal/min | psi |
| 2: Metric | °C | L/min | bar |
Diagnostic Codes
To Display Diagnostic Codes:
- Press and hold the "DHW" button for two seconds and then the [Up] button simultaneously (Fig 9).
- The last nine maintenance codes display and flash one after the other.
- To exit diagnostic codes and return the boiler to normal operation, press and hold the "DHW" button for two seconds, and then the [Up] button simultaneously.
Fig 9. "Up" and "DHW" Buttons
Table 7. Diagnostic Codes
| Code | Description | Troubleshooting Steps |
|---|---|---|
| 100 | Air Supply or Exhaust Blockage/Condensate Trap is Full | • Fan current initial check error. • Ensure condensate line and trap is not blocked. • Ensure internal air filter is clean with no obstructions. • Ensure high altitude setting is set properly (See High Altitude Setting). • Ensure combustion air and exhaust vents are not blocked and the approved venting materials are being used. • Ensure either the exhaust ring or intake cap is removed properly. • Ensure vent length is within limits. • Check fan for debris and ensure wheel turns freely. • Verify fan check valve is not stuck between fan casing and burner body. |
| 110 | No Ignition (Unit Not Turning On) | • Ignition Error. • Check that the gas is turned on at the boiler, gas meter, and/or propane cylinder. • If the unit is installed in a propane system, ensure that gas is in the tank. • Bleed all air from the gas lines. • Check the ground wire for the PC Board. • Ensure the flame rod wire is connected. • Ensure the igniter is operational.* • Ensure the venting is installed in accordance to this manual. • Check that the surface of the electrode and flame rod are clean. • Check gas solenoid valves for open or short circuits.* • Verify gas orifice installed is correct for the gas system the unit is installed in. • Check flame rod voltage to ground during ignition. |
| 120 | Flame Failure | • Boiler has flame failure. • Check that the gas is turned on at the boiler, gas meter, and/or propane cylinder. • If the unit is installed in a propane system, ensure that gas is in the tank. • Ensure the venting is installed in accordance to this manual. • Ensure the flame rod wire is connected. • Ensure the gas type and inlet gas pressure are correct. • Bleed all air from the gas lines. • Check the ground wire to the PC Board. • Check flame rod voltage to ground during ignition. |
| 140 | Heat Exchanger Overheat | • Overheat switch is tripped. • Measure the resistance of the Overheat Switch.* • Check the heat exchanger surface for hot spots which may indicate blockage due to scale buildup. • Ensure the boiler pump is not locked up. • Ensure that all of the valves in the CH circuit are open. • Ensure the boiler and CH circuit does not have a freezing condition. • The surface of the heat exchanger may turn to a black color as stainless steel is tempered even in normal conditions. This does not indicate an abnormal condition. • Check for damage on the exhaust, seal, and venting. |
| 150 | Venturi Control | • Venturi operation error. • Ensure the venturi motor is operating correctly.* • Replace the gas valve assembly. |
| 161 | High Outgoing Temperature | • Safety shutdown because DHW outgoing temperature is too hot. • Check sensor wiring for damage of outgoing thermistor. • Measure resistance of outgoing thermistor.* • Ensure the gas valve has no damage and the orifice is installed correctly. • Replace the gas valve assembly. |
| 170 | Venturi Blockage | • Check the venturi and silencer for blockage. • Before resetting this error, check if the condensate drain is block and if the venting is connected properly. |
| 180 | Gas Valve Adjustment Limit | • Ensure gas type is correct. • Ensure the ground from PCB is correct. • Ensure gas type parameter is correct. • Please call Rinnai Technical Support. |
| 190 | Electrical Grounding | • Secondary circuit ground fault. • Check all electrical components for electrical short. |
| 210 | Data Transfer Error | • If the PCB has been replaced, ensure the data transfer process is complete. |
| 220 | Gas Valve Adjustment | • Ensure a Reed switch is located properly. • Ensure the gas valve adjustment is operating correctly.* |
| 250 | Condensate Pump (Accessory) | • Boiler will operate for 60 seconds. • Confirm wire connections and harnesses are good. • Ensure the condensate reservoir is empty and condensate pump is operational. |
| 310 | Freeze Protection Thermistor | • Check sensor wiring for damage. • Measure the resistance of the sensor. • Replace if necessary. |
| 353 | Supply Thermistor | • Check sensor wiring for damage. • Clean the surface of the sensor. • Measure the resistance of the sensor. • Check the return thermistor. • Replace if necessary. |
| 363 | Return Thermistor | • Check sensor wiring for damage. • Measure the resistance of the sensor. • Replace if necessary. |
| 371 | Indirect Thermistor | • Check if the indirect thermostat is not used at the setting for thermistor usage. • Check sensor wiring for damage. • Measure resistance of sensor and replace sensor, if necessary. • Replace if necessary. |
| 380 | Exhaust Thermistor | • Check sensor wiring for damage. • Clean the surface of the sensor. • Measure the resistance of the sensor. • Check the return thermistor. • Replace if necessary. |
| 393 | Outdoor Thermistor | • Ensure that parameter number 00 is set to the appropriate position. • Check sensor wiring for damage. • Measure the resistance of the sensor. • Replace if necessary. |
| 400 | Pressure Sensor | • Check sensor wiring for damage. • Measure the voltage of the sensor. • Replace if necessary. |
| 430 | High/Low Water Pressure | • If the water pressure is too low, add water into the system until at least 13 PSI is observed. • Ensure there are no leaking components in the CH system. • If the pressure is too high, adjust the pressure to a maximum of 30 PSI. • Ensure the pressure relief valve and water fill are working correctly. |
| 443 | Low Water Cut-Off (LWCO) | • Ensure the LWCO device is working correctly. • Ensure the LWCO jumper is connected properly when LWCO is not in use. • Ensure the output is 24 V AC. If it is not, a transformer is needed. |
| 520 | Solenoid Valve Circuit | • Check the flame rod and wire for damage. • Close the gas shut off valve installed near the boiler. • Ensure the flame rod and wire are not wet. • Check the output from the PC Board to the solenoid gas valve. • If the output from the PC Board is abnormal, replace the PC Board. • If the output from the PC Board is normal, replace the gas control. |
| 540 | High Exhaust Temperature | • Make sure boiler pump activates during operation. • Check the exhaust thermistor wiring for damage. • Clean the surface of the thermistor. • Measure the resistance of the exhaust thermistor.* • If the sensor has been replaced and the error still appears, check the return thermistor. • If boiler is used in a hard water area, flush the DHW plate heat exchanger. • Check the exhaust duct, seal, and venting for damage. |
| 610 | Combustion Fan | • Check the motor wire harness for loose or damaged connections. • Measure resistance and voltage of motor wire harness.* • Ensure the combustion fan spins freely. |
| 700 | PC Board | • PC Board circuit error. • Replace PC Board. |
| 710 | Solenoid Valve Circuit | • Ensure Dip switch 5 on the PC Board is in the OFF position (default). • Ensure the gas control wire is not loose or damaged. • Ensure the heater circuit is not grounded. • Replace the PC Board. |
| 720 | Flame Rod | • Check the flame rod and wire for damage. • Ensure the flame rod and wire are not wet. • If there is no issue with the flame rod or wiring, replace the PC Board. |
| 831 | Indirect Tank Temperature | • Indirect tank runs for more than twelve hours without cycling off. • Check if the tank size is adequate. • Check the thermistor location. • Confirm that primary-secondary piping is utilized (such as low loss header, closely spaced tees, etc.) • Check if the supply temperature for the tank is higher than the tank setting temperature (see parameter 30 in "Parameter Settings" section). • Check sensor wiring for damage. • Measure resistance of sensor.* • If something is wrong on the sensor, replace the sensor. |
| 890 | Freeze Issue | • The boiler checks the heat exchanger temperature at the time of operation. If the temperature is too low, an error will occur. • Check if there is freezing in the boiler or CH system. |
| FFF | Maintenance Indicator | • This code is a placeholder in diagnostic code history indicating a service provider performed maintenance or service. • Enter this code after performing service by pressing the following buttons at the same time: [Up], [Down], and [DHW]. FFF appears on the monitor (right image). |
| SS | Service Soon (SS) | • Service Soon (SS) is a time-based service indicator set during installation. See parameter 04 in the "Parameter Settings" section for more information. • To reset the SS code, press the Central Heating (CH) button 5 times until SS disappears. |
| NO CODE | Boiler Does Not Start Heating With a Heating Demand Present | • Supply temperature or return temperature inside the boiler may be too hot. • Ensure the pump operates properly. • If there is a demand immediately after using DHW, wait at least three minutes for operation. |
| NO CODE | Supply Temperature is Different From the Setting Temperature on the Controller | • During outdoor sensor control, the supply temperature will vary dependent on the outdoor temperature. |
| NO CODE | CH Capacity is Insufficient | • Ensure the parameters are properly set for the installation. |
| NO CODE | Fan Even With No Demand | • The boiler may start or operate the pump for freeze protection operation. |
Table 6. Error Reset
| Reset Type | Description |
|---|---|
| Power Reset | Venturi Control (150), Gas Valve Adjustment Limit (180), Gas Valve Adjustment(220), High Exhaust Temperature (540), and Freeze Issue (890) can be reset by shutting down power to the boiler. |
| Interlock Reset | Venturi (170) and Solenoid Valve (520) allow only interlock rest. Please call Rinnai Technical Support. |
| Other Reset | Other error can be reset by Indirect Tank "On/Off" button or "Central Heating" (CH) button. |
Parts List and Gas Conversion Kits
The document includes exploded view diagrams illustrating the assembly of various Rinnai boiler components, such as the burner assembly, heat exchanger, fan assembly, and control panel, aiding in component identification.
This section provides a detailed parts list for Rinnai I-Series Plus models (IP060S, IP090S, IP120S, IP150S). It includes item descriptions, part numbers, and quantities for each model.
Parts List
| ITEM | DESCRIPTION | PART NUMBER | IP090S | IP060S | IP120S | IP150S |
|---|---|---|---|---|---|---|
| 001 | Front Cover Panel Assembly FF | 809000306 | 1 | 1 | 1 | 1 |
| 003 | Wall Mount Bracket | 109000594 | 2 | 2 | 2 | 2 |
| 007 | Connection Reinforcement Plate | 809000307 | 1 | 1 | 1 | 1 |
| 008 | Rubber Bushing | CF79-41020-A | 4 | 4 | 4 | 4 |
| 010 | Residential Screw and Washer | 106000645 | 1 | 1 | 1 | 1 |
| 011 | Ground Screw | 109000076 | 1 | 1 | 1 | 1 |
| 012 | Combustion Chamber Support Plate | 109000597 | 2 | 2 | 2 | 2 |
| 015 | Latch | 109001393 | 2 | 2 | 2 | 2 |
| 100 | Burner Assembly-Large | 806000082 | 1 | 1 | ||
| 101 | Burner Gasket-Large | 109000609 | 1 | 1 | ||
| 102 | Burner Plate Assembly-L | 806000050 | 1 | 1 | ||
| 103 | Combustion Check Valve Assembly | 108000135 | 1 | 1 | 1 | 1 |
| 105 | Burner Assembly-medium | 806000083 | 1 | 1 | ||
| 106 | Burner Gasket-medium | 109000610 | 1 | 1 | ||
| 107 | Burner Plate Assembly-M | 806000052 | 1 | 1 | ||
| 110 | Combustion Fan Assembly | 108000130 | 1 | 1 | 1 | 1 |
| 111 | Fan Mounting Packing | 109001396 | 1 | 1 | 1 | 1 |
| 112 | O-ring | 109000612 | 1 | 1 | 1 | 1 |
| 113 | Hexagon Head Screw | ZQAA0514UK | 3 | 3 | 3 | 3 |
| 114 | Gas Valve Assembly | 806000084 | 1 | 1 | 1 | 1 |
| 115 | O-ring | 109000252 | 2 | 2 | 2 | 2 |
| 116 | Gas Connection Pipe | 806000085 | 1 | 1 | 1 | 1 |
| 117 | Gas Tube Bracket | 109000635 | 1 | 1 | 1 | 1 |
| 118 | Inlet Gas Supply Connection | 106000119 | 1 | 1 | 1 | 1 |
| 119 | Inlet Gas Test Port Screw | 106000138 | 2 | 2 | 2 | 2 |
| 120 | O-ring | M10B-13-4 | 2 | 2 | 2 | 2 |
| 121 | Noise Filter | 106000271 | 1 | 1 | 1 | 1 |
| 130 | Heat Exchanger Assembly-Large | 807000234 | 1 | 1 | ||
| 131 | Heat Exchanger Assembly-Middle | 807000235 | 1 | 1 | ||
| 136 | OHS Bracket | 109000614 | 1 | 1 | 1 | 1 |
| 145 | Condensate Trap | 807000236 | 1 | 1 | 1 | 1 |
| 147 | Condensation Drain Tube | 807000237 | 1 | 1 | 1 | 1 |
| 148 | Drain Tube at Air Intake | 807000238 | 1 | 1 | 1 | 1 |
| 150 | Electrode/Flame Rod Assembly | 805000150 | 1 | 1 | 1 | 1 |
| 151 | Electrode | 805000151 | 1 | 1 | 1 | 1 |
| 152 | Flame Rod | 805000152 | 1 | 1 | 1 | 1 |
| 153 | Electrode Gasket | 805000153 | 1 | 1 | 1 | 1 |
| 154 | Electrode Plate | 109001401 | 1 | 1 | 1 | 1 |
| 156 | Electrode Sleeve | 109000620 | 1 | 1 | 1 | 1 |
| 200 | Exhaust Duct Assembly | 808000044 | 1 | 1 | 1 | 1 |
| 201 | Exhaust Gasket | 109001403 | 2 | 2 | 2 | 2 |
| 202 | Intake Gasket | 109001404 | 1 | 1 | 1 | 1 |
| 203 | Air Supply Seal Ring | 109001405 | 1 | 1 | 1 | 1 |
| 204 | Exhaust Thermistor | 105002024 | 1 | 1 | 1 | 1 |
| 205 | O-ring | 107000323 | 1 | 1 | 1 | 1 |
| 206 | Exhaust Duct Gasket | 808000051 | 1 | 1 | 1 | 1 |
| 207 | Thermistor Screw | 109000622 | 1 | 1 | 1 | 1 |
| 210 | Rubber Cap | 109001407 | 1 | 1 | 1 | 1 |
| 212 | Exhaust Adapter Ring | 108000132 | 1 | 1 | 1 | 1 |
| 213 | Air Inlet Seal Ring - 2 inch | 109001408 | 1 | 1 | 1 | 1 |
| 214 | Air Inlet Gasket | 109001409 | 1 | 1 | 1 | 1 |
| 220 | Duct Assembly | 108000133 | 1 | 1 | 1 | 1 |
| 221 | Air Inlet Filter | 108000086 | 1 | 1 | 1 | 1 |
| 222 | Air Inlet Cap | 108000134 | 1 | 1 | 1 | 1 |
| 410 | CH Connection | 807000182 | 2 | 2 | 2 | 2 |
| 413 | Water Pressure Sensor Assembly | 807000185 | 1 | 1 | 1 | 1 |
| 416 | Plate HEX-CH Heating Connection-2 | 807000209 | 1 | 1 | 1 | 1 |
| 422 | CH Heating Return Pipe Assembly | 807000208 | 1 | 1 | 1 | 1 |
| 423 | CH Heating Connection Assembly | 807000210 | 1 | 1 | 1 | 1 |
| 431 | Heat Exchanger Pipe Connection | 807000193 | 1 | 1 | ||
| 435 | Trap Drain Plug Assembly | 807000195 | 1 | 1 | 1 | 1 |
| 440 | HEX-CH Heating Connection Pipe | 807000196 | 1 | 1 | 1 | 1 |
| 441 | Heat Exchanger Pipe Connection-medium | 807000197 | 1 | 1 | ||
| 442 | Air Vent | 808000052 | 1 | 1 | 1 | 1 |
| 443 | Secondary Heat Exchanger Outlet Fitting | 807000198 | 1 | 1 | 1 | 1 |
| 444 | Secondary Heat Exchanger Inlet Fitting | 807000199 | 1 | 1 | 1 | 1 |
| 445 | Primary-Secondary Pipe Assembly-Large | 807000200 | 1 | 1 | ||
| 446 | Primary-Secondary Pipe Assembly-Medium | 807000201 | 1 | 1 | ||
| 447 | Primary-Secondary Connecting Fitting | 807000202 | 1 | 1 | 1 | 1 |
| 451 | Pipe Bracket | 809000168 | 2 | 2 | 2 | 2 |
| 452 | Retention Clip | 809000169 | 2 | 2 | 2 | 2 |
| 453 | Pipe Bracket | 809000170 | 1 | 1 | 1 | 1 |
| 460 | Thermistor Sensor | 805000154 | 1 | 1 | 1 | 1 |
| 461 | Thermistor Sensor | 805000155 | 1 | 1 | 1 | 1 |
| 470 | O-ring | 807000215 | 2 | 2 | 2 | 2 |
| 472 | O-ring | 807000204 | 11 | 11 | 11 | 11 |
| 473 | O-ring | 807000205 | 2 | 2 | 2 | 2 |
| 480 | O-ring | 807000207 | 1 | 1 | 1 | 1 |
| 502 | Clip | 809000173 | 2 | 2 | 2 | 2 |
| 504 | Clip | 809000174 | 1 | 1 | ||
| 506 | Clip | 109000638 | 5 | 5 | 5 | 5 |
| 702 | PC Board - CH | 805000167 | 1 | 1 | 1 | 1 |
| 704 | PCB Cover | 809000312 | 1 | 1 | 1 | 1 |
| 705 | Power Transformer | 805000158 | 1 | 1 | 1 | 1 |
| 707 | Controller Unit | 805000159 | 1 | 1 | 1 | 1 |
| 708 | Controller Unit Harness | 105002042 | 1 | 1 | 1 | 1 |
| 710 | Power Cord | 805000160 | 1 | 1 | 1 | 1 |
| 712 | Sensor Harness-2 | 805000168 | 1 | 1 | 1 | 1 |
| 714 | Heater Ground Harness | 805000162 | 1 | 1 | 1 | 1 |
| 716 | Over Heat Switch | 805000164 | 1 | 1 | 1 | 1 |
| 717 | Water Pressure Connection Harness | 805000090 | 1 | 1 | 1 | 1 |
| 718 | Thermistor Sensor | 805000165 | 1 | 1 | 1 | 1 |
| 719 | Igniter Ground Harness | 105000243 | 1 | 1 | 1 | 1 |
| 720 | Guide Seal | 809000176 | 1 | 1 | 1 | 1 |
| 730 | Igniter Assembly (Module) | 805000183 | 1 | 1 | 1 | 1 |
| 731 | Igniter Plate | 805000166 | 1 | 1 | 1 | 1 |
| 800 | Screw | 109000746 | 4 | 4 | 4 | 4 |
| 801 | Screw | CP-30583 | 4 | 4 | 4 | 4 |
| 802 | Screw | ZBA0408UK | 3 | 3 | 3 | 3 |
| 803 | Screw | CP-30580 | 25 | 25 | 25 | 25 |
| 804 | Screw | 109000648 | 2 | 2 | 2 | 2 |
| 807 | Screw | U217-449 | 6 | 6 | 6 | 6 |
| 808 | Screw | 109001417 | 5 | 5 | 5 | 5 |
| 809 | Screw | CP-80452 | 1 | 1 | 1 | 1 |
| 810 | Screw | 109000179 | 3 | 3 | 3 | 3 |
| 811 | Screw | 109001416 | 3 | 3 | 3 | 3 |
| 812 | Screw | 109000649 | 4 | 4 | 4 | 4 |
| 819 | Thermistor screw | ZFAB0406UK | 2 | 2 | 2 | 2 |
| 821 | Truss Screw | 109000598 | 14 | 14 | 14 | 14 |
| 822 | Screw | 809000178 | 2 | 2 | 2 | 2 |
| 824 | Screw | 809000179 | 1 | 1 | 1 | 1 |
| 825 | Screw | 109000793 | 2 | 2 | 2 | 2 |
| 828 | Ground Screw | 809000182 | 10 | 10 | 10 | 10 |
| 829 | Screw | 809000310 | 2 | 2 | 2 | 2 |
| 840 | Cable Clip | 109001297 | 1 | 1 | 1 | 1 |
| 841 | Cable Clip | 809000311 | 1 | 1 | 1 | 1 |
| 842 | Cable Clip | CP-90124-3 | 1 | 1 | 1 | 1 |
| 860 | Mount Bracket | 109000628 | 1 | 1 | 1 | 1 |
| 861 | Vent Screen Set | 108000104 | 1 | 1 | 1 | 1 |
| 863 | Pressure Relief Valve | 807000211 | 1 | 1 | 1 | 1 |
| 864 | Outdoor Thermistor Kit | 803000081 | 1 | 1 | 1 | 1 |
| 888 | User Manual - EN | 800000193 | 1 | 1 | 1 | 1 |
| 889 | Installation Manual - EN | 800000191 | 1 | 1 | 1 | 1 |
| 890 | Tech Sheet | 800000196 | 1 | 1 | 1 | 1 |
| 891 | User Manual - FR | 800000206 | 1 | 1 | 1 | 1 |
| 892 | Installation Manual - FR | 800000207 | 1 | 1 | 1 | 1 |
| 992 | Gas Conversion Kit | 804000124 | 1 | 1 | 1 | 1 |
Gas Conversion Kits
| Models | Gas Type | Kit Number |
|---|---|---|
| IP150S, IP120S, IP090S, IP060S | NG/LPG | 804000124 |
