E110 High
Your boiler has got too hot and has shut itself down as a safety precaution to prevent damage.
Technical description: Overheated – try bleeding your radiators
Typical repair cost: £100-£280 (including labour)
DIY fix possible
Wait for the boiler to cool down completely.Check all radiator valves are open and bleed any air from the radiators.Check that your system pressure is between 1.0 and 1.5 bar.Press and hold the Reset button for five seconds.
Protect yourself from future repair bills
A boiler cover plan would cover faults like E110 — no call-out fees, no surprises.
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Parts commonly replaced
- Overheat Thermostat
- Circulating Pump
- Temperature Sensor (NTC)
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