Low
S.36 on Vaillant Turbomax Plus 828 E

Your boiler is currently in standby mode because it is not receiving a signal from your thermostat to turn on the heating.

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 heating demand from low voltage controls

From this model's manual
Verified against the Vaillant Turbomax Plus 824 828e installation & service manual, page 38.
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 and turn the target temperature up higher than the current room temperature.Ensure your programmer or timer is set to an 'On' period for heating.Replace the batteries in your wireless thermostat if applicable.

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