BoilerFaultCodes.com
BURNER WILL NOT LIGHT - WITH PUMP RUNNING High

Your boiler is trying to run but failing to start the flame, meaning you have no heating or hot water despite hearing the internal pump working.

Call an engineer soon

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

Technical description: CHECK HOT WATER CIRCUITS AND RE-FILLING OF THE HEATING CIRCUITS; FILTER BLOCKED ON HEATING RETURN; FILTER BLOCKED AT CONNECTING SMALL CAPILLARY TUBE TO BOTTOM OF WATER SECTION; AIR LOCK IN PUMP; AIR SEPARATOR SCREW CAP NOT OPENED; WATER SECTION JAMMED; GAS VALVE SPINDLE JAMMED; DIAPHRAGM SPLIT OR DAMAGED
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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