Low
S.30 on Heatline Monza

Your boiler is currently in standby mode because it is not receiving any instructions from your thermostat or hot water tap to start heating up.

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

No request for heating or domestic water.

From this model's manual
Verified against the Heatline Monza 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.

DIY fix possible

Check your room thermostat is set to a temperature higher than the current room temperature.Ensure your heating timer or programmer is currently in an 'ON' period.Try turning on a hot water tap to see if the boiler ignition sequence begins.

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