High
2207 on Worcester Bosch 1000

Your boiler's water pump is failing to communicate correctly with the main control board, which means it cannot circulate water effectively to heat your home.

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

Low level/ no PWM signal from the calculation pump

What causes this fault?

Pump signal fault

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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