Warmhaus
Fault Codes

Listed below are the common Warmhaus fault codes as described by the boiler manufacturer along with a possible cause.

Warmhaus Fault Codes

Enerwa and Priwa Error Codes

Fault Code	Possible Cause
rE 02	Low water pressure in heating system – parameter is adjusted wrong
E 03	High water pressure due to excessive water pressure or safety valve error
E 04	Domestic hot water (DHW) temperature sensor failure – possible error with electronic card or the NTC sensor.
E 05	Temperature sensor from radiator error – electronic card detecting a failure.
E 13	Exhaust gas temperature sensor error – excessive temperature alarm.
E 14	Exhaust gas temperature sensor error – electronic card detecting an anomaly in the gas exhaust gas sensor.
E 15	Fan error – a fan being blocked or excessive external air pressure.
rE 06 / rE 08	No ignition – control gas supply line valves could be open
rE 07	Safety thermostat intervention from dual sensor – excessive heating occuring due to any failure during normal operation, try resetting the boiler.
E 10	AUX output sensor error
E 16	AUX return sensor failure
E 11	Gas valve modulator connection is broken – could be due to an internal failure.
E 17 / E 19	Maximum difference failure between 2 NTC temperature sensor – poor circulation.
rE 28	Maximum locking number reached – boiler has reached the maximum reset number (5 times in an hour) – attempt 1 reset each hour thereafter.
E 37	Low voltage error – voltage required for operation is too low.
E 40	Electricity network frequency error – fluctuation in electricity frequency.
rE 41	Flame loss after 6 successive ignitions – gas supply line valve being open.
E 42	Error with pushbutton
E 43	Room thermostat communication error – disconnection or communication loss in room thermostat.
rE 44	Gas valve error due to opening period without flame – try resetting the boiler.
E 62	Calibration request – boiler has detected an absence of calibration control.
rE 72	Delta T error – boiler failing to ignite. Could be due to a gas line valve being closed or a flue error.
E 74	Temperature sensor error.
E 77	Current values reached – check combustion values and CO2 calibration, try resetting the boiler if this fails. Either the board or the valve will need replacing.
E 78	Regulation current value has been reached. Try resetting the boiler, check the gas pressure and check the combustion values and CO2 calibration – if this doesn’t work the board or valve needs replacing.
E 79	Minimum regulation current reached – try resetting the boiler – checking the gas pressure and checking the combustion values and CO2 calibration – the board or valve might need replacing.
rE 80	Gas valve driver error – due to an internal failure.
rE 81	Ignition problem at the first start – this could be due the flue line, possible flue blockage or chimney gasket.
rE 82	Burning problem – due to the flue line either being blocked or chimney gasket.
E 83	Temporary mis-burning error – could be due to a gas pressure or flue line issue.
E 84	Capacity reduction for detected low gas inlet pressure – check the CO2 calibration values.
rE 88	Error in gas line cycle – possible gas valve component error.
E 89	Problem on combustion feedback signal – gas pressure needs checking.
E 90	Error in regulating combustion – possible error with the calibration values chimney gas valve and board.
E 92	Air compensation active – the CO2 values need checking, possible error with the wind presence.
E 93	Unable to regulate combustion – possible calibration value issue, chimney gas valve or board.
E 94	Low gas pressure or exhaust recirculation that could be an issue with gas pressure.
E 95	Intermittent combustion value caused by a possible error with electrode position or electrical connection stability.
E 96	Flue blockage – due to chimney and combustion values – the boiler may need a calibration.
rE 80	Gas valve error – possible internal error.
rE 81	Ignition problem at the first start – could be due to a problem with a flue line.
rE 82	Burning problem error – flue line error.
E 83	Temporary mis-burning error that may be caused by the gas pressure or flue line.
rE 88	Gas line cycle error – could be due to a gas valve component error.
rE 98	Electronic card start error.
rE 99	An error has been detected in the Combi, try resetting the boiler.

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WarmhausFault Codes

Warmhaus Fault Codes

Enerwa and Priwa Error Codes

Warmhaus
Fault Codes