BoilerFaultCodesYour boiler has no power and is completely unresponsive, meaning the heating and hot water will not work.
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, blown fuse, Internal fault
What causes this fault?
This fault occurs when the electrical supply to the boiler is interrupted or the internal components fail to distribute power. The most common reason is a blown fuse in the external wall switch or a failure within the boiler's main control board. In some cases, a power surge or a short circuit in another part of the system can cause the unit to shut down completely to prevent damage.
DIY fix possible
Check if your home's main fuse box has tripped a circuit.Ensure the boiler's isolation switch (usually a white switch near the unit) is turned on.Check if other appliances in the house have power to rule out a local power cut.
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
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