BoilerFaultCodesWarmhaus rE80 Fault Code
Also written as RE80 — same fault.
The Warmhaus rE80 fault code means: your boiler has stopped working because its internal computer is unable to communicate with its gas control system.. It appears on 1 Warmhaus model in our database.
Technical description: Gas valve driver error – due to an internal failure.
What causes the Warmhaus rE80 fault?
This fault occurs when the boiler's main control board loses the ability to send instructions to the gas valve, which is the component that regulates fuel flow for the flame. The most common reason is an electronic failure within the circuitry of the printed circuit board itself, meaning it can no longer safely manage the ignition process.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Warmhaus models that show the rE80 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Warmhaus rE80 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