Existing System - Now won’t hear to temp

I’ve had Tado installed with the bridge / wireless stat / 4 x TRVs for over a year, always worked fine. Suddenly and for no apparent reason, it doesn’t want to hear the house to temp.

Hot water works fine and switches properly.

Overriding does nothing.

When I Opened the app this morning and manually started hearing rooms it fired up instantly and worked fine, but has shut off with the rooms at 16 degrees and not the 19 they are set at.

Now it won’t resume heating.

Any thoughts?

Answers