High
E2 222 on Worcester Bosch 35 RSF

Your boiler's internal thermometer has developed an electrical fault and can no longer safely monitor the temperature of the water leaving the unit.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

Flow sensor short circuit error

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

E2 233View →E2 350View →E2 351View →

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