Low
T1 on Worcester Bosch 35 RSF

Your boiler is currently testing its ability to create a spark to light the burner.

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

Ignition test – checking the igniter spark

DIY fix possible

Wait for the boiler to complete its automatic startup sequenceEnsure your gas supply is active at the meterPress the reset button if the code remains frozen for more than a few minutes

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