BoilerFaultCodesYour boiler appears to have no electrical power at all, meaning the screen and lights are completely blank and it will not provide any heating or hot water.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: No power at control board
What causes this fault?
This fault occurs when the boiler's electrical circuit is broken, preventing the internal components from receiving the electricity they need to operate. The most common reason is a blown fuse on the main control board, often caused by a power surge or a failing internal part like a pump or valve short-circuiting the system.
DIY fix possible
Check if your home's main electrical consumer unit (fuse box) has tripped a circuit.Locate the boiler's fused spur (a wall switch near the boiler) and ensure it is switched on.Check the fuse inside the wall-mounted spur switch and replace it with a 3-amp fuse if necessary.
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A boiler cover plan would cover faults like No light — 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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