BoilerFaultCodesYour boiler appears to have no power and cannot start the ignition process, meaning you will not have 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: Appliance does not ignite. Damaged fuse or no electricity supply.
What causes this fault?
This fault occurs when the electrical circuit within the boiler is broken, preventing the internal components from receiving the power they need to start. The most common reason is a blown fuse caused by a sudden power surge or a failing internal part that has tripped the system's safety electrics. In some cases, it may simply be that the external power switch has been accidentally turned off or the main control board has developed a critical fault.
This issue often occurs during the first cold snap of autumn when older components are suddenly put under strain after being idle all summer.
DIY fix possible
Check if other appliances in your home have power to rule out a general power cutCheck your main consumer unit (fuse box) to see if a circuit breaker has trippedCheck the fused spur switch near the boiler and ensure it is switched onCheck the 3-amp fuse inside the boiler's external power plug or spur
Find a Gas Safe engineer
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Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like Warning lamp is off — no call-out fees, no surprises.
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Worcester Bosch WR325 RSF 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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