E10 Low
Your boiler has lost signal from the sensor that monitors the temperature outside your home, usually because of a wiring fault or a broken sensor.
Technical description: External probe fault
Typical repair cost: £90-160 (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 E10 — no call-out fees, no surprises.
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Parts commonly replaced
- External temperature sensor
- Wiring harness
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