How to mend ... Hot Water System

ferroli domicompact f 30 b hot water works fine but ch wont work?

It will run for 15 min when test programme is run but wont work on timer or on overide, was working fine until... [Read more]

Potterton Promax 24 HE - Heating without hot water problem?

Hi, I have a Potterton Promax 24 HE boiler on a pumped system. Since the start of the recent cold weather I ha... [Read more]

Vaillant VCWGB242EH GC 4704413 Combi goes out immedi?

Hi, am working on the above boiler, was leaking at the auto air vent so tested the expansion vessel to find it... [Read more]

BAXI SOLO3 PFL30?

THE BOILER CENTRAL HEATING SYSTEM WORKING BUT HOT WATER IS SLITELY WARM AND NOT HOT AS SHOULD BE. WHAT CAN I... [Read more]

How can I stop my Sime Halstead Trio Whining?

Hello everybody. I have a Sime Halstead Trio boiler. When I run the hot water it fires up fine but just before... [Read more]

glow worm space saver mark 2?

have a space saver mk 2 hot water is fine but the header tank for the heating system keeps overflowing. it tak... [Read more]

how can i fix my powermax he 85?

status code A15 CH pressure loss ,if using just hot water all good but once i'll switch on CH ok for less than... [Read more]

OIL FIRE HEATING PROBS?

I HAVE A PROB WITH MY UPSTAIRS HEATING TWO OF MY RADS WONT WORK TRYED CLEANING THE SYSTEM THEY WORK FOR A WHIL... [Read more]

Eco button turns itself on - Worcester 25Si?

Combination boiler works well and has been serviced annually for the 3 years of it's life. Now the ECO button ... [Read more]

discovery heater?

My heater will only blow out cold air, I stripped it down and found that there`s no hot water flowing to the ... [Read more]

Domestic hot water?

Is there a legal maximum temperature for hot water? I live in a council owned block of flats and it has a cent... [Read more]

heating works but no hot water?

we have a potterton netaheat 10-16 which worked fine until last week when we had a new rad added.the water sys... [Read more]

one raditor heating up on hot water side?

hi have a y plan system wich has a mid position diverter valve the problem is that the motor on the valve is s... [Read more]

water overheatinh in central heating?

The water in header tank nearly explodes hot after you can hear strange noise probably from the pump. I change... [Read more]

sealed water system boiler?

I have a glowworm ultimate 30BF/SS to 60BF/SS i have hot water no central heating? please help!

Radiators take over 1 hour to heat up downstairs?

When the heating is switched on it takes ages for the downstairs radiators to heat up. When they eventually do... [Read more]

saunier duval f30e only warm water?

i sometimes only get warm water from my taps yet the radiators are hot, looked in the manual and it goes on ab... [Read more]

My oil boiler is heating water but not the house?

I have an oil heating system which heats the water and the house and was new last year. It worked last winter ... [Read more]

How canb I fixed my grundfos central heating pump ?

The pump will not work, but the hot water system is OK

How do I isolate the water supply to my heating radiators?

I need to replace both radiator valves on a particular radiator in the house. The system is gravity and has a ... [Read more]