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Are you sure the pipes are 22mm?? You can get a 15mm shower valve with adjustable inlets. Between 130-155mm. Not sure about 22mm tho

Wel its got clogged with dirt/ sludge again so tour system is dirty.clean plate again and flush system

Ive never heard or came across it before. But like anything new its under warranty .

A ghost?

The flexible braided hose is for topping up pressure to 1 bar. The black levers in Vertical position is open position. Open slightly till pressure is at 1bar and closed again. If boiler wont reset try switching it off at the mains switch of the wall for a few minutes.

Stay of the glue!

You need a diaphragm repair kit. Google it. Easy and cheep repair

Sorry i apologise. I didnt realise you were the person looking advice. I thougth it was someone having a go. You should be able to remove the plate without touching the gas valve. Have a look. I cant remember ever having to remove a gas valve to remove a plate. Tho cant remember ever cleaning...

Draining a boiler and taking two screws out is hardly major! As for getting charged £170 per hour maybe thats your problem! This site is for advice. If he feels comfortable doing it. Its not rocket science

Open the drain valve below boiler. About a bucket of water should come out then the water will stop. As no air can enter the water wont drain.change your valve then top up water pressure untill 1bar using filling loop

Read the instructions in the manual on how to replace dhw plate heat exchanger. Once you have the the plate removed put in a bucket with boiler water and some citric acid power from your local chemist. Leave i half hour then run it under cold water. Re install and you should be fixed.

If your pump is running its not the pump! More than likely the central heating diaphragm. When the pump runs the diaphragm pushes out make contact with a switch to tell the board that the pump is running

The valves point upwards towards the boiler. Sounds like the boiler is firing but no circulation.

Could be a few things.Diverter valve being my guess bug you will need a engineer to look at it.

Migth be worth a try as i havent work on this type of boiler but if there like the glowworm which vaillant make theres a filter fitted in the housing beside the rubber hose's which collect sludge. Which will give these symptoms. Also the engineer should be able to enter the installer menu on...

Hi,does the f22 fault code happen on heating as well ? I believe on these boilers when the pump runs the pressure sensor looks for a .3bar rise. Which is a common fault. Either dirt in pressure sensor or expansion vessel needs charged. Also when you run a hot tap does the boiler show it has...

Turning down the iso valves should fix the problem. Failing that a small expansion vessel on the hot outlet about a meter away from boiler with a check valve between vessel and boiler

Just fit a new fluidmaster ball valve. Your old valve is just getting stuck through age

When you say doesnt fill does the water constantly run into the toilet bowl? Or no water enters the cistern ?

Try turning the stop cock off slightly. Or if theres iso valves on on the problem taps try turning those down. There is no real quick fix its trial n error. Is it a gas combi boiler you have?