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I took this pic before i cleaned and dried the inside of the DV

I had to change the front as it seemed to close better on the DV, that's why the discolouring

I have moved the wheel inside to stop the water flow coming out when trying to re-assemble the DV and put in clip. Im not sure if the switches are in the right position as this was how it looked when opened

DVM: I checked the DVM again, the pin shows right up to the front and does not move when turning on the hot water. But when i put the DVM back in to its housing on the DV and put the clip back in to retain it, water pours out from the joint. So the pin on the inside of the DV is hitting the...

DVM pics

Hi Mick, Nice one i will check the expansion vessel and deffo think your right on the diverter valve, so i will re check that again. Cheers Pete

This is a long one, so you better have a nice cold drink or a cuppa to hand!! I've been having a problem with my C28 5 year old for a while now where CH fires up for 30seconds then goes off for 15 seconds then back on again for 30 seconds etc etc... HW runs hot/warm/cold cold cold cold and...

I forgot to say that my boiler is the C28 and it has been living comfortably in my garage for 5 years! Well i stripped the boiler down, cleaned the exchanger with that Dam Buster gear and it was pretty clean nothing really came out. Flushed it for ten mins with hosepipe so nothing else in...

Thanks for the reply!! Your probably right! This morning, before i read this reply, i rechecked the DV and put the old one back on (with new o ring bit) and i got CH but no HW. Then i noticed the boiler is firing up for about 30 seconds, doing the CH then it goes off for 15 seconds, then back...

I been having a similar-ish problems where my HW runs hot then cold then hot then cold, CH not a problem. Was advised to change the thermisters (screw in one and clip on one) did this and still HW not working properly. Noticed leak on diverter valve so ordered replacement. Fitted this...