How to mend ... Central Heating Position

honeywell 4073A 3 position diverter.how do I fix this?

My Diverter valve is not changing from central heating to hotwater. there is a manual over ride,but nothing ... [Read more]

no hot water or central heating?

I do not have any hot water or central heating, the boiler does not fire up at all yet the pilot light is lit,... [Read more]

Baxi 80E heating is on constantly even with timer switch in off position?

Central heating pump is constantly running. Boiler lights up intermittently, runs for few seconds, then flame ... [Read more]

gas central heating system?

the temperature of the hot water is all of a sudden too high and the water pipes either side of the drayton 67... [Read more]

how can i fix my ls100t ravenheat combi boiler?

central heating works fine,timer ok,no domestic hot water in any position(sumer/winter)switch.boiler lighting ... [Read more]

Sime 60 stopped working (both central heating and hotwater)?

Sime 60 heating system (circa 7 yrs old and annually services incl. some parts replaced in recent years) insta... [Read more]

How can i fix my combi boiler [SIME, FRIENDLY FORMAT 80 E]?

When i put on the central heating, it works perfectly for approximately the frst half hour (i.e the radiators ... [Read more]

Bolier does not heat up hot water?

I visited my parents over the weekend and noticed that there was a loud grinding type noise coming from their ... [Read more]

Why does the Hawk II Optima keep turning on central heating without request?

I have a Hawk II Optima combi boiler which is around 10yrs old. I've pushed the selector switch to the disable... [Read more]

Boiler fires up when demand for hot water but doesn't when demand for C/H?

I have a Potterton Netaheat Profile 80e boiler, Honeywell V4073A mid-position valve, Honeywell ST699B programm... [Read more]

How to fix a biasi 24s combination boiler?

Biasi 24 s combi boiler. The problem is the central heating comes on randomly even though the thermostat for h... [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]

Possibly faulty mid position valve?

As the summer is here I decided to turn my central heating off but keep the programmer on for the hot water. ... [Read more]

central heating valve?

can any one help ,updated heating controls for seperate control of heat/water there is a isolating valve on a ... [Read more]

Potterton 22mm mid position motorised valve?

How can I get the valve to operate my central heating, because when the timer kicks in it only heats up the wa... [Read more]

puma 80 diverter valve?

hi I have got a puma potterton 80 which is turning into a nightmare 8 months ago the heating wasnt coming on... [Read more]

No pressure in boiler tried everything, can u help please?

hello, Ive been without central heating for 4 days and its freezing, my boiler is 'vokera linea 24' and th... [Read more]

Sime 100E boiler:How to replace the knob /spindle on the potentiometer?

Hi I have pulled the knob off the central heating potentiometer on the boiler and instead of just the knob ... [Read more]

how can i fix fer falcon combi that is not firing?

when i turn off and on gas valve, the combi is not firing central heating system water is coming out hot but n... [Read more]

Cental heating ok, no hot water?

Potterton Netaheat Profile central heating fine, boiler seems to be heating the water ok to the storage tank,... [Read more]