BoilerFaultCodesYour boiler has stopped working because its internal computer has detected a problem with the electronic circuit that manages the flame.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Internal control box error (flame circuit fault)
What causes this fault?
This fault occurs when the boiler's main control board fails to correctly process the signals required to manage and monitor the burner's flame. The most common reason is a physical failure of the internal electronics on the circuit board, though it can also be triggered by worn-out ignition parts or damaged wiring that disrupts the signal flow.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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 E8 — no call-out fees, no surprises.
Affiliate links — we may earn a commission at no extra cost to you.
Remeha W40 60 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.
Affiliate links — we may earn a commission at no extra cost to you.