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thank you got a new diverter valve motor ch working fine now thanks again and best wishes to you and yours

ok i bridged across the two terminals and the motor seemed to turn i have not taken it off yet so dont know if it is doing what it should do or if pcb is telling it to work how do i test it is working

ok found it i think it is working but maybe it is not doing what it should i am thinking of tacking valve apart and cleaning it would this be a good idea

it is on and there is no room stat all rads have trvs

so does the diverter valve have its own motor could it be a blockage in the valve its self

my combi boiler biasi m90e 24s the hot water works fine central heating not working it is turned on and up to pressure is it the pump or pcb or something else please help