DIY Doctor

S-Plan Heating Wiring Problem With Boiler Pump Still Running

Postby Darrenb73 » Sat Jun 02, 2018 9:14 pm

I have completed my S plan heating wiring system. The hot water and heating motorised valves both work correctly when demand is needed. When no valves are calling for heat, the boiler pump still runs and when the boiler temp drops it fires to maintain temperature, can anyone help??
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Postby ericmark » Tue Jul 31, 2018 6:37 pm

Normally boiler and pump come on together, the thermostats work the valves, and the valve micro switches work boiler and pump.
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