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boiler service, boiler repair, emergency repair
Vaillant Ecotec Exclusive 832 Boiler Fault Codes
| Code | Meaning | Cause |
| F0 | Interruption feed temperature sensor (NTC): | NTC faulty, NTC cable faulty, faulty plug connection on NTC, faulty plug connection on the electronics |
| F1 | Interruption return temperature sensor (NTC): | NTC faulty, NTC cable faulty, faulty plug connection on NTC, faulty plug connection on the electronics |
| F10 | Short-circuit in feed temperature sensor | Sensor plug has mass short to the casing, short-circuit in wiring loom, sensor faulty |
| F11 | Short-circuit in return temperature sensor | Sensor plug has mass short to the casing, short-circuit in wiring loom, sensor faulty |
| F13 | Short-circuit on heat retention storage tank sensor | Sensor plug has mass short to the casing, short-circuit in wiring loom, sensor faulty |
| F20 | Safety temperature limiter actuated | Flow probe not connected thermally correct or defective, appliance does not shut down |
| F22 | Dry fire | Too little water in the appliance, water shortage switch defective, cable to pump or water shortage switch defective, pump blocked or defective, pump output too low |
| F23 | Water shortage, temperature spread between flow and return probe too large | Pump blocked or defective, pump output too low, flow and return sensor swapped over |
| F24 | Water shortage, temperature rise too quick | Pump blocked, low output from the pump, air in appliance, system pressure too low |
| F25 | Interruption in cable harness | Cable harness faulty |
| F27 | External light: | Gas solenoid valve defective, flame detector defective |
| F28 | Appliance does not start: Attempts to ignite during start failed |
Faults in the gas supply such as: - Gas meter or gas pressure detector defective - Air in gas - Gas flow pressure too low - Main gas cock closed Faults in the gas fitting, wrong gas setting, igniter (ignition transformer, ignition cable, ignition plug) defective, ionisation current stopped (cable, electrode), faulty earthing in appliance, electronics defective |
| F29 | Flame goes off during operation and subsequent ignition attempts failed | Gas supply temporarily stopped, ignition transformer has spark failure, faulty earthing of appliance |
| F32 | Speed deviation Fan | Fans blocked, plug not inserted correctly on fan, hall sensor defective, fault in cable harness, electronics defective |
| F49 | eBUS undervoltage | Short-circuit on eBUS input, eBUS overload or two power supplies with different polarities on the eBUS |
| F61 | Gas valve control faulty | Short-circuit to mass in cable harness to the gas valves, installation fault on gas valve (short-circuit, mass short in the coils) electronics faulty |
| F62 | Gas valve shutoff delay defective | Gas fitting leaking, electronics defective |
| F63 | EEPROM faulty | Electronics defective |
| F64 | Electronics/sensor fault | Short-circuit in flow or return sensor or electronics defective |
| F65 | Electronics temperature too high | Electronics too hot due to external effect, electronics defective |
| F67 | Flame monitor input signal is outside the limits (0 or 5 V) | electronics defective |
| F70 | No valid appliance variant for display and/or electronics | Spare part case: Display and electronics changed at the same time appliance variant not re-set |
| F71 | Constant value feed NTC | Feed NTC faulty |
| F72 | Flow and/or return sensor fault | Flow and/or return sensor is faulty (tolerance too great) |
| F73 | Signal water pressure sensor in the wrong range (too low) | Line to water pressure sensor is interrupted or has a short-circuit to 0V or water pressure sensor faulty |
| F74 | Signal water pressure sensor in the wrong range (too high) | Line to water pressure sensor has a short-circuit at 5V / 24V or internal fault in water pressure sensor |
| F75 | No sudden change in pressure was detected on turning on the pump | Water pressure sensor or/and pump defective Too little water in the appliance; check adjustable bypass; Connect expansion vessel in return; Air in the appliance |
| F76 | Interruption in cable harness | Cable harness faulty |
| F77 | Condensate pump or return signal from accessory module heating | Condensate pump faulty or return signal from the exhaust gas flap has responded |
| con | No communication with the printed circuit board | Communication fault between the display and the printed circuit board in the switchgear box |