High
25 on Baxi Combi 80e

Your boiler is struggling to circulate water properly, likely because the pressure inside your heating system has dropped too low or the internal pump is stuck.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

Safety Thermostat Activated (Boiler or Flue)

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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