Low
T1 on Worcester Bosch Junior 24i

Your boiler is currently performing a routine check to see if the spark that starts the flame is working correctly.

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 self-test cycleIf the code persists, try resetting the boiler onceEnsure your gas supply is active at the meter

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