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oh and cheers for all this advice aswell :D

just tried that it lights up on both sides but heating still doesnt work just had a look at the old control and that was unlinked aswell

ive got it set for 5/2 unlinked and mk9 as i copied the wiring from the old 922 programmer

so it could be the pum or the mv then? damm.. looks like its a floor up job to try and find it

i belive its under the living room floor -- allthought ive never taken the complete floor up to find it... i thought it could be the mv but cant seem to find it --would it be located by the pump?....i was hoping it would be something i could fix without ripping the floor up.

i think its a fully pumped.. is there an easy way to tell the diffrence? sorry im a numpty with heating :oops:

quick run down is glowworm back boiler about 10-15yr old programmer lost power found to be fuse..replaced fuse getting hotwater again - however heating wouldnt come through, boiler firing on water cycle. the programmer sounded diffrent when i pressed +1 on heating compared to water so ive...