sHr High
Your boiler has detected an electrical fault with its internal temperature sensors and has stopped running as a safety precaution.
Technical description: HP flow sensor short / HP return sensor short
Typical repair cost: £140-£260 (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 sHr — no call-out fees, no surprises.
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Parts commonly replaced
- Flow temperature sensor
- Return temperature sensor
- Wiring harness
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