F010, F011 High
Your boiler has detected a problem with its internal temperature sensors, meaning it cannot accurately measure how hot the water is and has stopped running for safety.
Technical description: Sensor fault
Typical repair cost: £90-180 (including labour)
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Protect yourself from future repair bills
A boiler cover plan would cover faults like F010, F011 — no call-out fees, no surprises.
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Parts commonly replaced
- Flow NTC temperature sensor
- Return NTC temperature sensor
- Wiring harness
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