BoilerFaultCodesYour boiler has detected an internal communication error with its ignition system and has locked itself out for safety.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: SCOT flame amplifier – reset the boiler
What causes this fault?
This fault occurs when the boiler's main control board loses touch with the electronic system that manages the flame. It is usually caused by a component failure on the circuit board or a faulty sensing electrode that can no longer confirm the burner has lit safely. Because the boiler cannot guarantee the flame is under control, it shuts down instantly to prevent any safety risks.
DIY fix possible
Locate the power button/reset icon on the boiler's control panelPress and hold the reset button for 5 secondsWait for the boiler to restart; if the code persists or returns immediately, you must call a Gas Safe engineer
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like E1-72 — no call-out fees, no surprises.
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Could it be time for a new boiler?
If repair costs are adding up, a new energy-efficient boiler could be the smarter long-term choice.
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