High
3. PILOT LIT, BUT NO MAINS GAS on Ideal WLX RS50 / RS60

Your boiler's small pilot light is on, but the main burner is failing to ignite to provide heating or hot water.

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.

What the manual says

Manufacturer manual

Check supply voltage at control box, fuse, CH and HW controls, system controls (room/cylinder thermostats), boiler thermostat, and gas control valve.

From this model's manual
This code was read directly from the manufacturer service manual for this model.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

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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