High
E100 on Baxi Suprima 40

Your boiler's internal computer brain is struggling to keep time or communicate with its memory, which prevents it from running your heating and hot water correctly.

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

Internal clock time error on printed circuit board (PCB)

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

E110View →E133View →

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