Medium
H02.12 on Remeha Quinta Ace 30

Your boiler is currently stuck in a waiting mode because it has not received the correct command from your thermostat or heating controller to start heating up.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Release Signal

From this model's manual
Verified against the Remeha Quinta Ace 30 installation & service manual, page 57.
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 fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

H02.00View →H02.02View →

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