rE 72 High
Your boiler is failing to light the flame, which means you will not have any heating or hot water until it is reset or repaired.
Technical description: Delta T error – boiler failing to ignite. Could be due to a gas line valve being closed or a flue error.
Typical repair cost: £100-280 (including labour)
DIY fix possible
Check that your gas emergency control valve and any internal gas lever valves are fully openInspect the flue terminal outside to ensure it is not blocked by leaves or debrisPress and hold the 'Reset' button for 3 seconds to attempt a restart
Protect yourself from future repair bills
A boiler cover plan would cover faults like rE 72 — no call-out fees, no surprises.
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Parts commonly replaced
- Gas Valve
- Ignition Electrode
- Flue Pressure Switch
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