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DRIFT TEST WAITING on Johnson Starley J32 System ET

Your heater is temporarily pausing while it carries out a routine internal calibration check to ensure the fan is running at the correct speed.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description

Drift test waiting

DIY fix possible

Wait for the unit to complete the internal checkEnsure there is a call for heat (thermostat turned up)Do not power off the unit while the test is in progress

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