BoilerFaultCodesWarmhaus rE44 Fault Code
Also written as RE44 — same fault.
The Warmhaus rE44 fault code means: your boiler is struggling to ignite the gas properly and has locked itself out for safety after several failed attempts.. It appears on 1 Warmhaus model in our database.
Technical description: Gas valve error due to opening period without flame – try resetting the boiler.
What causes the Warmhaus rE44 fault?
This fault occurs when the boiler's control system attempts to light the gas multiple times but fails to detect a sustained flame. The most common reasons are a faulty gas valve that isn't releasing fuel correctly, or a worn ignition electrode that is unable to produce the spark needed to start the combustion process.
DIY fix possible
Check that your gas emergency control valve is open and you have credit on your gas meterPress and hold the 'R' or 'Reset' button on the boiler control panel for 3 secondsWait for the boiler to complete its restart sequence to see if the flame generates
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Gas Safe Register →Warmhaus models that show the rE44 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Warmhaus rE44 fault code information on this page is sourced and cross-checked against the official Warmhaus service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026