E2 222 High
Your boiler has stopped working because its internal thermometer has developed an electrical fault and can no longer tell how hot the water is.
Technical description: Short circuit in the flow temperature sensor contacts
Typical repair cost: £120-220 (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 E2 222 — no call-out fees, no surprises.
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Parts commonly replaced
- Flow temperature sensor (NTC thermistor)
- Wiring harness
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