Low
Boiler on on Ideal Concord CXA 40-120

Your boiler is working normally and the light simply indicates it is switched on and firing.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Neon indicating boiler status: Boiler is operational

From this model's manual
Verified against the Ideal Concord Cxa 40 120 installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

What causes this fault?

This indicator is not a fault, but rather a confirmation that the boiler's internal controls have successfully received a demand for heat and the burner is currently firing. It shows that the electrical circuit is complete and the gas valve is open, allowing the unit to heat your water or radiators. You will see this light whenever the system is operating as intended.

DIY fix possible

This fault may be fixable without an engineer. Check your manual first.

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