Any plumbers on here?

[driverace]

Boiler

I am not an heating engineer ,but my daughter was having the same problem.The pressure gauge did not show a reading So i fitted a new pressure gauge with No improvement.So then called a heating guy he tried 2 or 3 permisters and to no avail .SO i said why is there no pressure showing,he insisted that once he got it working it would come up.So I persauded him to remove the union that holds the pressure gauge in,he said as i remove this union water will **** out of here .AND it didnt! He poked around at the back of the chamber that the pressure gauge screws into and it was blocked solid with shit .Cleared the blockage and hey presto we were sorted !

[paul spence]

This is what i have to do Gaz, try this first!!

oh my god!!!!!!!

[DazRS2K]

[blister2]

i am

i am a plumber is the baxi 105 instant or a 105e or 105he
thanks alex

[GAZ W]

i am a plumber is the baxi 105 instant or a 105e or 105he
thanks alex

Its a 105e

[richard wilson]

Its a 105e

[GAZ W]

On your existing system you will find that most of your hot water pipework will be 22mm and your cold water pipework will be 15mm. When you fit a combi your hot water supply comes straight from the incoming water main so when you turn the hot water on full demand your hot water pipes are holding 50% more water. So in effect you are asking the boiler to work its nuts off. This is a common problem where combi boilers are fitted to existing heating systems.

The boiler has been in a few years now and has been ok untill about a week ago .

Had someone out to it and they replaced the temp sensor and it is still the same , so any ideas what else it could be if it is not the heat exchanger , temp sensor , or existing pipework?

[richy c]

flow switch?