BoilerFaultCodesYour boiler’s internal computer has developed a fault and is struggling to process information correctly.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: PCB error
What causes this fault?
This fault occurs when the boiler's main control board experiences an internal electronic failure or a corruption of its memory. It is typically caused by aging electrical components reaching the end of their lifespan or damage from an unexpected electrical power surge. When this happens, the brain of the boiler can no longer safely coordinate the sequence of ignition and operation.
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.
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A boiler cover plan would cover faults like E152 — no call-out fees, no surprises.
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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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