S.57 Low
Your boiler has temporarily paused operation to prevent potential overheating and will restart automatically once it has cooled down.
Technical description: Waiting period comfort safety mode
Typical repair cost: £0-120 (including labour)
DIY fix possible
Check that all radiator valves are fully open to allow water to flow freelyEnsure there are no obstructions around the external flue pipeMonitor the boiler for several minutes to see if it clears the code and restarts on its own
Protect yourself from future repair bills
A boiler cover plan would cover faults like S.57 — no call-out fees, no surprises.
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Parts commonly replaced
- None (Software logic)
- NTC Thermistor
- Circulation Pump
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