How to mend ... Switch Valve Diaphragm

Arriston combi boiler hot water scalding temp light comes on?

high temp light comes on, boiler cuts out, click reset button works fine.. then cuts out few mins later. bar p... [Read more]

diverter valve not operating?

Hi I am having a problem with my potterton performa 28i boiler. Central heating works fine. Dhw giving cold ... [Read more]

Problem with Vokera 80SP combi boiler?

My Vokera Excell 80SP has developed a fault in which I have no hot water or central heating. The pilot light i... [Read more]

Baxi 105e clunking noise every time I turn a hot water tap off?

Baxi 105e 4 years old. Whilst the boiler seems to operate properly, every time you turn off a hot tap in the h... [Read more]

brittany combi se 80 hot water fault?

guys, i have the above boiler, and before xmas had a problem where i had no hot water, i called an engineer w... [Read more]

vaillant turbo max?

only have hot water when heating is on , have changed diaphragm, still same , if boiler on hot water only, and... [Read more]

Ravenheat RSF No Hot Water?

I’ve changed the diaphragm in the diverter valve of a Ravenheat RSF . The rod is still not making contact wi... [Read more]

Vokera boiler works in heating mode but not Hot water only mode?

I have a problem with my boiler it is a Vokera 20-80 RS flowmatic. The flowswitch tries to move but does not o... [Read more]

Why does my Aplha 280E Boiler fail to light now & again?

My Alpha 280E boiler has the following problem -9 times out of 10 it is OK. Sometimes, you switch on the combi... [Read more]

Vaillant TurboMax Diverter Valve problem?

I'm sick of repairing this TurboMax. First, a history of problems. The diverter valve, then a switch on th... [Read more]

Halstead Boiler - CH working but no hot water?

Hi, I've got a Halstead Quattro Gold combi boiler, the other day the hot water stopped working but the cent... [Read more]

Sime Super 90 DHW/divertor valve problems HELP!?

Just replaced the diaphragm in the diverter valve, and lubricated the spindle with silicone grease. Although t... [Read more]

Vaillant Turbomax VUW242E No hot water?

I have a Vaillant Turbomax VUW242E boiler,Heating is ok but not getting any hot water. I have replaced the DH... [Read more]

Why is my Vaillant Turbomax VUW boiler pressure dropping after a service??

Hi, I had my boiler serviced and repaired (replacement diaphragm and push rod as micro switch wasn't workin... [Read more]

worcester bosch 230 combi rsf?

No hot water, only when central heating on. I have identified the problem as being the diaphragm plunger is... [Read more]

vaillant vcw-gb 242 eh not igniting to either heat dhw or ch?

boiler was drained to look at water valve diaphragm as central heating was not working (ie) diverter valve no... [Read more]

Sime 80?

My Sime Format 80 was not giving any hot water but the heating was OK. I checked the diaphragm and it was dam... [Read more]