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    Wants help for Valliant Combi Boiler VCW 221H GC No.4704414

    Hey Kev, I understood first time what you said but I just wanted to play devils advocate, but never mind I have come to conclusion that I will get the servo change after all and take it from there. So Kev and DP and all of you who contributed to this wiki, all the best and kev mate keep it...
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    Wants help for Valliant Combi Boiler VCW 221H GC No.4704414

    Hi Kev, Thnaks for this pic yes I follow u but its not when I put finger on servo cam, its when I push the microswith carrier on diverter valve only then the boiler fires back again. I can aslo hear the whistling noise of boiler pressure. So dont know mate what's seems to be happening. I am...
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    Wants help for Valliant Combi Boiler VCW 221H GC No.4704414

    Hi DP, Ok man keep it cool I am taking advice but I know what is my boiler doing. I have looked at servo again and cleaned the spindle which shoots to get hot water cam activated. Still no response when it comes to firing the boiler. I had to intervene with my finger again to Diverter...
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    Wants help for Valliant Combi Boiler VCW 221H GC No.4704414

    Yes Mick by pressing the cam on Diverter Valve it works fine and heating comes on. But when u switch the hot water back again heating goes off until u press the cam back again. So u recon Diverter valve at fault? Cheers Sharks :?
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    Wants help for Valliant Combi Boiler VCW 221H GC No.4704414

    Servo is working fine no problem with hot water. But I have shower dismantled cos of refurbishment. Do you think because of this that I might have some air lock in the system as hot & cold water pipes are open and exposed. Cheers Sharks :?
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    Wants help for Valliant Combi Boiler VCW 221H GC No.4704414

    Hi Guys, I have very old but very relaibale vallaint combi boiler but unfortunetly I am having a problem with my faithful. I think I have identified what seems to be the problem, it seems that diverter valve is sticking and some time systems fires up and some time it just do not want to know...
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