How to mend ... Water Mode Switch

Heating boiler through the programmer is on hot water ok no heating to rad?

Boiler operates in the hotwater mode, put the switch over to the heating,no heating,room stat on max, 3 port v... [Read more]

Ravenheat CSI 85AT Boiler. Central Heating not working?

After switching the setting on my Ravenheat CSI 85AT Boiler to Central Heating and Hot Water (its been set to ... [Read more]

I can not get C/Heating on VCW GB 242 EH Vaillant Combi Boiler ?

I have just renewed the Divertor valve on my combi I have hot water while switch is in Summer mode, but when I... [Read more]

SIME SUPER 90 - Diverter Valve?

Hello all, I have recently inherited a SIME SUPER 90 combination boiler in a house I moved into. The boile... [Read more]

baxi 105e clicking back on after use?

Have just replaced the diaphram on my boiler (thanks to Iain for instructions). Now only one problem to solve... [Read more]

Jaguar 23kW: Using hot water tap triggers central heating to come on?

When i use the hot water i then turn off the tap. About 30% of the time i find the central heating comes on. T... [Read more]

How can i fix my ferrolli 77ff combi?

having problems with a ferrolli 77ff. Boiler will not start in hot water or heating mode, fan runs. have chan... [Read more]

Vaillant Turbomax No Water/Warmstart/Heating S.33 Error?

Hi, I have moved into a house with this dreadfull boiler. Hot water has been intermittent i.e takes ages to... [Read more]

why does my falcon fer boiler keep going off ?

my falcon fer boiler serial no.9946L60353(about 6 years old) keeps going off after about 2 minutes. It will co... [Read more]

Vaillant turbomax VUW/GB282/1E heating fault?

I was called to take a look at this particular model earlier today and whilst waiting for a response from Vail... [Read more]

Vaillant VCW sine18 T3 WFH-hot water supply problem?

My boiler will not provide hot water at the tap unless it is running in heating mode when the tap is opened (p... [Read more]

potterton 2 goes over pressure in heating mode?

every time you switch the heating on the boiler goes over pressure immediately (from 1 bar to 3 bars within 1... [Read more]

How can Ifix my Vokera 12-48 RSE Mynute Combi boiler?

When the power is switched on with the thermostat calling for heat, the fan immediately comes on but the boile... [Read more]

Ravenheat CSI 85AT boiler tripping problem?

Ravenheat condensing combi boiler CSI 85AT fault? My 1.5 year old boiler has developed a random & intermitt... [Read more]

Ravenheat condensing combi boiler CSI 85AT fault?

My 1.5 year old boiler has developed a random & intermittent tripping fault, in both modes of heating (i.e. CH... [Read more]

Bosch 350 Combi. CH not working domestic water OK?

Bosch 350 Combi. I have a similar fault to an earlier posting in that domestic water is OK but central heating... [Read more]

Ravenheat Fanned Combi RSF 82ET - Hot water but no Central Heating?

Hi there, my ravenheat combi works fine when I turn on the hot water taps but the central heating has not work... [Read more]

Baxi 105e c/htg cuts out of its own accord?

No problem on hot water. C/htg does not cut in if temp lights display a high temp. To get the boiler running... [Read more]

Sime friendly format 80E?

Myboiler when in central heating mode will heat the radiators until the set temp is reached then trip out as i... [Read more]

vokera excel 80 E combi does not give hot water in DHW mode?

It gives hot water in the taps only when CH mode. Some times in DHW mode it attempts to fire and the fan may c... [Read more]