PUMP NOT RUNNING High

Chaffoteaux PUMP NOT RUNNING Fault Code

Also written as PUMPNOTRUNNING — same fault.

The Chaffoteaux PUMP NOT RUNNING fault code means: your boiler's water pump is failing to start, which means the system cannot circulate hot water to your radiators or taps.. It appears on 1 Chaffoteaux model in our database.

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: ELECTRICITY NOT SWITCHED ON - FUSES BLOWN; MAIN SWITCH NOT TURNED ON; AUXILIARY CONTROLS INCORRECTLY WIRED - IF FITTED; PUMP JAMMED; BOTTOM MICROSWITCH NOT MAKING ABOVE DIVERTER VALVE
Typical repair cost £120-250 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Chaffoteaux models that show the PUMP NOT RUNNING fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Chaffoteaux PUMP NOT RUNNING fault code information on this page is sourced and cross-checked against the official Chaffoteaux service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026