No water detected entering machine or pressure switch trip not detected. | FA | If after 6 minutes the control does not detect water entering machine, valves are turned off and the LED Water Tap is switched ON. The Control is in Pause Mode. If the failure is removed, pushing PB Start will restart the appliance. Potential Causes:- No water in the unit: Ensure valves are on, check inlet hoses/screens, verify inlet valve operation.
- Water in the unit: Check pressure switch hose, verify no siphon problem, check wire harness connections to valves, pressure switch, CUC; check hoses for leaks; verify pressure switch and CUC operation.
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Long Drain | | If drain time exceeds 8 minutes, LED clean Filter is turned ON. Control is in Pause Mode. Restart by pushing PB Start if failure is removed. Potential Causes:- Check drain hose for blockage/kinks.
- Check electrical connections at the pump, ensure pump is running.
- Check drain pump filter for foreign objects.
- Check electrical resistance of the drain pump.
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Aquastop Failure | | Aquastop contact on the bottom tray closed for >30". Door remains locked, drain pump runs constantly. Potential Causes:- Water in bottom tray: Check hoses for leakage, check for overfoam, check tub for leakage.
- No water in bottom tray: Check aquastop switch for short circuit, check aquastop wiring, verify CUC operation.
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Too Long Heat Time | F04 | Water temperature not increasing over 35°C during 40 minutes of the first heating step. Potential Causes:- Check electrical resistance of the heating element.
- Check wire harness connections to heating element, NTC, and CUC.
- Check electrical resistance of the NTC.
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Water Temperature Sensor Error | F05 | NTC sensor value out of range during water heating. Potential Causes:- Check the NTC resistance.
- Check connections to the NTC and CUC.
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Drive Motor Tachometer Error | F06 | Control unable to properly detect motor speed. Machine shuts down. Door unlocks after drum stops. Potential Causes:- Check wire harness connections between motor and CUC.
- Check tachometer circuit resistance on motor.
- Check motor windings resistance.
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Motor Control Triac Error | F07 | Main control detected a short circuit in the motor control triac. Door unlocks after drum stops. Potential Causes:- Check CUC by running Test Program.
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Heater Circuit Error | F08 | Main control detected a heater circuit failure. Checked before cycle start and after spinning. Potential Causes:- Check heater connectors resistance to ground.
- Check heater resistance.
- Check wiring connectors to heater and CUC.
- Check the CUC.
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Door Open LED flashing after cycle start | F12 | CUC cannot lock the door within 10" after program start. Door open LED flashes for 10". Potential Causes:- Check if door is closed properly.
- Check for mechanical problem on door lock system.
- Check wiring/harness between CUC and door lock.
- Start Test Program. If problem persists, error Code F13 will be displayed.
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EEPROM Error | F13 | Error reading EEPROM data on CUC. Potential Causes:- Power glitch may cause this error. Run Test Program for complete EEPROM check. If failure detected, replace CUC.
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Drum Up Circuit Missing | F14 | CUC not detecting Drum Up switch closing during motor rotation (only for TOPLOADERS with DRUM UP Circuit). Detected ONLY during Test Program. Potential Causes:- Check position of electromagnetic device.
- Check position of reed sensors.
- Check resistance of reed sensor.
- Check wiring connection between reed sensor and CUC.
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User Interface Error | F15 | Communication between user interface module and CUC is disturbed. Potential Causes:- Check wiring connection to the display module.
- Check display module.
- Check CUC.
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Pressure switch Failure | F21, F23 | CUC detects pressure switch contacts for wash level and heater safety ON simultaneously for 10". Potential Causes:- Check resistance of pressure switch contacts.
- Check wiring to pressure switch and CUC.
- Start Test Program. If problem persists, F23 will be displayed.
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Overflow Failure | F24 | Overflow contact on pressure switch closed for >60". Door locked, drain pump runs constantly. Potential Causes:- Check drain hose for blockage/kinks.
- Check wire harness connections to drain pump, pressure switch, CUC.
- Check/clean drain pump filter.
- Check for drain pump failure.
- Check inlet valve for proper shut off.
- Check pressure switch for proper operation.
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Pump Driver Failure | F26 | CUC detects defective pump triac during wash cycle. Potential Causes:- Check resistance of pressure switch contacts.
- A failure of the pressure switch could also cause the Code.
- If OK, start Service test to check CUC. If failure occurs, replace CUC.
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Reversing relay failure | F27 | CUC detects motor can only rotate in one direction. Potential Causes:- Check harness to the motor.
- Check the CUC.
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Tapped Field Failure | F28 | CUC cannot switch ON the tapped field of the Motor. Potential Causes:- Check if correct motor is built in.
- Check resistance of motor fields.
- Check harness between Motor and CUC.
- If points above are OK, replace CUC.
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Foam detected During the Wash Cycle | Fod | CUC unable to drain water after washing or spin after several trials. Potential Causes:- Customer used too much detergent.
- Check pump hoses for issues.
- Check electrical resistance of the pump.
- Check electrical resistance of the pressure switch.
- Check pressure switch hose condition and connection.
- Verify no siphon problem.
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