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Hi All The pressure on my Megaflow unvented water heater has dropped to almost 0. My plumber is not able to come out for a few days to adjust the pressure and I have no hot water/heating. I know that he adjusted the black switch/lever and I just want to know if it is ok to do this and if...

Hi I have a Megaflow Unvented Mains water heater. The pressure gauge black needle has dropped to 0.8. The red needle is 2.8. I have been advised the black needle should be at 1.5. Can anyone advise me how to increase the pressure? Thanks so much.

Hi My hot water and heating stopped on Sunday. I have a Megaflow unvented mains pressure heater in my airing cupboard which apparently has a stuck pump. I have a Potterton boiler in the kitchen. They are both under four years old. A plumber came to free the pump on Tuesday, the system started...