E5 218 High
Your boiler has sensed that the internal water temperature has become dangerously hot, causing it to shut down for safety.
Technical description: The temperature captured by the flow temperature sensor exceeded 105°c
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 E5 218 — no call-out fees, no surprises.
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Parts commonly replaced
- Circulation Pump
- Flow Temperature Sensor
- Heat Exchanger
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