Hi there and thanks for reaching our community. I'm sorry to hear about your issue, but I'll do my best to assist you. I'll need to document the issue a bit, so please answer the following questions:
How long has your thermostat been installed for?
Did the issue happen during the installation?
Have you had any power cuts recently?
Have you had any work done on your electrical or heating systems recently?
If yes, was the power properly restored at the fuse board after work was done?
How many zones are present in the setup?
Did you manage to check the fuse box to see if all the breakers are up?
