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E125

Water circulation fault

Baxi identifies E125 as a water-circulation fault.

What this code means

Baxi identifies E125 as a water-circulation fault.

Possible causes

  • Pump problem
  • Air in system
  • Blocked or restricted circulation
  • Valve issue

Common symptoms

  • E125 displayed
  • Boiler may lock out
  • Poor heating circulation

Checks to make

  1. Check system pressure
  2. Check whether radiators and pipework indicate poor circulation
  3. Arrange engineer diagnosis

Safety

  • Do not remove the boiler casing or work on gas, combustion, flue or internal electrical components unless appropriately qualified. If gas is suspected, follow the national gas-emergency procedure.

Model notes

Baxi fault-code availability varies by boiler family and control platform.