E50 High
Your boiler's hot water sensor has stopped working, so the system is unable to tell how hot your water is and has stopped heating it for safety.
Technical description: Hot water NTC (Negative Temperature Coefficient) error
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 E50 — no call-out fees, no surprises.
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Parts commonly replaced
- Hot water NTC sensor
- Wiring harness
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