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Hello again, Just to say thanks once again. I have had plenty of hot water every day since I took your advice. It was indeed the expansion tank having no water. Cheers Chris

Thanks for all your help, I will drain tomorrow and post if I get no refill. I will also introduce some WD40 to the expansion tank ball valve arm. Can't get the ladders out now, kids are in bed. Cheers

Thanks Dave, I'm guessing that the expansion tank having so little in it when the system is hot probably means when it goes cold it probably sucked in a lung full of air. There is a drain off tap/valve next to the pump, If I empty and the expansion tank refill's will that be enough to clear...

Mick/Dave, Thanks for the quick replies. I just checked the small tank and there was an inch or 2 of water in it, wiggled and pushed the back down and I have filled it half way up, and it cut out when I let go. BTW, what is this tank for :?: As for the pump, it is in the cupboard under...

Hello, I have read about others with a Bermuda Baxi 552 back boiler but none are the same as mine and I wondered if anyone could help. I have 3 upstairs rad's that get hot even when HW the only option selected. I have now found that I have little or no hot water regularly. tonight I had HW...