0A44 High
Your boiler has stopped working because one of its internal temperature sensors is reading an unusually high or low temperature, causing the system to shut down for protection.
Technical description: Return sensor out of range.Sensor measures a temperature outside normal working range
Typical repair cost: £120-£200 (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 0A44 — no call-out fees, no surprises.
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Parts commonly replaced
- Return NTC Temperature Sensor
- Wiring Harness
- PCB (Printed Circuit Board)
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