BoilerFaultCodesRemeha 0$ Fault Code
Also written as 0 — same fault.
The Remeha 0$ fault code means: your boiler is perfectly healthy and is simply waiting for a signal from your thermostat or timer to turn on your heating or hot water.. It appears on 12 Remeha models in our database.
Technical description: Standby: there is no heat demand from control system.
What causes the Remeha 0$ fault?
This fault happens when the boiler loses its electrical supply immediately after a different internal problem caused it to shut down. Because the power was cut or interrupted during the shutdown process, the boiler's computer has 'forgotten' what the initial problem was and cannot safely restart. It is often caused by a failing main circuit board or a loose electrical connection that fails under the stress of a system error.
DIY fix possible
Check your room thermostat is set to a higher temperature than the current room temperatureEnsure your heating programmer or timer is set to 'On' for the current time periodVerify that the boiler's own internal settings are not set to 'Summer' or 'Hot Water Only' mode
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Remeha models that show the 0$ fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Remeha 0$ fault code information on this page is sourced and cross-checked against the official Remeha service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026