BoilerFaultCodesRemeha E7 Fault Code
The Remeha E7 fault code means: your boiler has stopped working because it cannot properly measure the temperature of the water coming back into the unit due to a faulty internal sensor.. It appears on 11 Remeha models in our database.
Technical description: Return sensor shorted or open circuit
What causes the Remeha E7 fault?
This fault occurs when the boiler's internal computer loses communication with the sensor that monitors the temperature of the water returning from your radiators. The most common reason is that the sensor has physically failed or developed an electrical short, meaning the boiler can no longer safely determine how much heat to produce. Occasionally, the issue is caused by a loose connection or damaged wiring between the sensor and the main control board.
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 →Remeha models that show the E7 fault code
Click a model for the full fault code list and model-specific repair notes.
- Avanta 18V Repair: £120-350
- Avanta 28c Repair: £120-200
- Avanta Plus Repair: £120-350
- Avanta Plus 28c Repair: £120-350
- Avanta Plus 35c Repair: £120-350
- Gas 610 Eco Pro Repair: £150-450
- Quinta 30 Repair: £150-350
- Quinta 85 Repair: £180-450
- Quinta Ace 25 Repair: £120-£210
- Quinta Ace 45 Repair: £120-£210
- Quinta Ace 65 Repair: £120-£210
Source
Remeha E7 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 27 April 2026