S.32 Medium
Your boiler has paused to prevent itself from freezing because it has detected a problem with the fan speed, likely caused by a blocked or frozen flue pipe.
Technical description: Heat exchanger antifreeze active as fan speed variation is too high
Typical repair cost: £90-280 (including labour)
DIY fix possible
Check the external exhaust pipe (flue) for any obstructions like leaves or debrisIf it is very cold outside, check if the white plastic condense pipe is frozen and gently thaw it with warm waterTurn the boiler off and back on again to see if the message clears
Protect yourself from future repair bills
A boiler cover plan would cover faults like S.32 — no call-out fees, no surprises.
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Parts commonly replaced
- Fan
- Main PCB
- Hose to pressure switch
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