FAQs

No heat in any zone

No heat in any zone

Option 1:
UFH system not turning on
Ensure the UFH controls are programmed correctly, and the heat source is available to provide hot water for the programmed period

Option 2:
Heat source/UFH pump not running
Ensure at least one thermostat is calling for heat and that the switched lives to the boiler and the circulators become live according to demand

Option 3:
Valves closed
Check the isolation valves are open, the balancing valves are in their balanced positions and that the thermoelectric actuators are opening ondemand (a white band will be visible on the raised cap)