- Reaction score
- 1,143
I am probably being a complete numpty but I have a four zone heating system of which three of the zones and hot water are controlled by a couple of Honeywell ST9500C Two zone controllers.
I have a further two underfloor heating zones which a connected via a Danfoss FH WC underfloor heating controller via a Honeywell ST9100C, When I switch one of the wired thermostats supplying the Danfoss FH WC I hear the click of the relay but then get no power at the boiler and pump feeds.
My wife has stated that there is a cold snap coming and could I possibly fix it, the fuse in the controller is fine, I have power to the thermostats and switched live to the controller? Could the controller be knackered?
Any ideas welcomed as the Mrs has got the hump!
I have a further two underfloor heating zones which a connected via a Danfoss FH WC underfloor heating controller via a Honeywell ST9100C, When I switch one of the wired thermostats supplying the Danfoss FH WC I hear the click of the relay but then get no power at the boiler and pump feeds.
My wife has stated that there is a cold snap coming and could I possibly fix it, the fuse in the controller is fine, I have power to the thermostats and switched live to the controller? Could the controller be knackered?
Any ideas welcomed as the Mrs has got the hump!