Just had the above installed but having problem with control, MI contradict wiring instruction for boiler with that of honeywell guide, original wiring does not work and following MI to wire pump thru boiler the boiler is live and running with controller live but turned off?
Plumber has tried replacing both three port valve actuator and controller [danfoss fp 715si].Have also replaced wiring from controller to boiler to ensure no cable damage.
Any ideas?
Plumber has tried replacing both three port valve actuator and controller [danfoss fp 715si].Have also replaced wiring from controller to boiler to ensure no cable damage.
Any ideas?