Biasi boiler -hot water problem

skaps

Hi i have a biasi boiler and the hot water in the shower is not working properly. I have to put on the taps in the sink first and then it will heat up for a minute and then goes cold. The other bathroom shower works fine. Help

flea72

could just be coincidence that the other shower still works, and isnt having the same problem

we have this problem with our biasi, sometimes you get hot water no probs, other times, like you, we have to turn off the shower and run the tap, so the boiler kicks in, then turn the shower on, and turn the tap off

we have had countless pressure switches replaced on the boiler, and nothing has cured it indefinitely

sorry, i couldnt be more help

F