BoilerFaultCodesYour boiler has detected an internal communication or sensor data error and has shut down to protect itself.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Display of failure code (chapter 11)
What causes this fault?
This fault occurs when the boiler's internal computer brain loses contact with its sensors or the control panel display. It is typically caused by a loose connection on the wiring harness or a component failure on the main circuit board that prevents data from being read correctly.
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 37 — no call-out fees, no surprises.
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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.
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