Heating System failure

Have a underfloor heating system controlled by individual zones down stairs, and a single thermostat upstairs.
Heating from thermostat upstairs starts the boiler and heating comes on, individual thermostat trigger sytem and pump downstairs, but boiler does not trigger to come on. is there a simple fault i can fix?

Asked by Neil on 16th Mar 2021
Expert Trade Answers
"There is a small issue here, is that the thermostat upstairs in in the hotter part of the house triggernig late. All zones should be controllable individually."
Answered on 18th Mar 2021 - Member since Mar 2021 - report
"Possibly a faulty stat on the flow to the manifold to the actuators.

It could also be a fault on the controller bridge the pump signal to the boiler signal and that will quickly establish where the fault lies"
Answered on 16th Mar 2021 - Member since Aug 2020 - report

Sounds like your heating valves are stuck or the motors are not operating correctly, if upstairs works and the boiler is fine it’ll be the valves not calling for heat.


RSS p&h"
Answered on 25th Mar 2021 - Member since Jan 2021 - report
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