BoilerFaultCodesTechnical description
Calibration condition error, wait for burner to restart
What causes this fault?
This fault occurs when the boiler's internal computer is unable to correctly balance the mix of gas and air required for a stable flame. It often happens if the gas valve is failing to regulate flow accurately or if the sensor that monitors the flame is dirty or worn out. As a result, the system repeatedly tries to recalibrate itself to ensure safe combustion.
DIY fix possible
Reset the boiler using the front control panelWait for the boiler to complete its automatic recalibration sequenceEnsure the gas supply to the property is active
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