09E High
Your boiler has shut down because it has detected that the water inside is getting too hot, usually due to a circulation blockage or a pump failure.
Technical description: Overheat sensor overheating
Typical repair cost: £120-350 (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 09E — no call-out fees, no surprises.
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Parts commonly replaced
- Circulation Pump
- Overheat Thermostat
- Main Heat Exchanger
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