Your boiler appears to have lost power or has suffered an internal electronics failure, meaning it cannot start up to provide heat.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Other Errors
What causes this fault?
This fault occurs when the boiler's internal computer, or PCB, fails to receive electrical power or stops processing signals correctly. The most common reason is a blown fuse on the board caused by a power surge, though it can also happen if moisture or age has caused the electronic components to wear out completely.
DIY fix possible
Check that the main power switch for the boiler is turned onCheck your home's consumer unit (fuse box) to see if a circuit has trippedEnsure the gas supply is active by checking other gas appliances
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 LED 1 (RESET) OFF, LED 2 (BURNER LIT) OFF — no call-out fees, no surprises.
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Glow-worm Micron 30ff is discontinued — time for a new one?
Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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