How to mend ... Boiler Keeps Going Cold

Vaillant ecoTEC 828 pump starts with cold water tap?

When I turn on the cold water taps everything is fine until I turn the tap OFF. Then the pump (not the burner)... [Read more]

Domestic Hot Water has a low flow rate on Vaillant AquaPLUS?

We've had our AquaPLUS combi boiler with 15l Power Store since 2005. However today the Domestic Hot Water (DHW... [Read more]

Ravenheat HE85T - no central heating, water working fine though?

Hi, I'm hoping someone can help? We have a Raveheat HE85T combi boiler, approx 3 - 4 years old. Recently, ... [Read more]

Ferroli Boiler HE 38C/Heat exchanger?

DHW Run's hot and then goes cold? I have a Ferroli Opimax HE 38C 4 years old, When I turn ON DHW run's hot a... [Read more]

how can i fix my icos HE15 boiler?

My ICOS HE15 boiler is not working and the display is flashing F and L... Please help as its getting cold!

Falcon Combi-boiler model 9911L81521 has poor flow on the hot water?

I recently had a workman turn off the water in the street while someone in the house had a hot water tap runni... [Read more]

DHW Run's hot and then goes cold?

I have a Ferroli Opimax HE 38C 4 years old, When I turn ON DHW run's hot and then goes cold A03 come up, sen... [Read more]

got hot water but no heating?

the boiler is working getting hot water but the radiators are cold

Valliant Turbomax plus hot water problems?

Have a Vaillant turbomax plus boiler, which has been working fine until a couple of months ago. When turning ... [Read more]

How do i pressurise a Worcester Bosch 400?

I have lost pressure in my Worcester Bosch Highflow 400 RSF. All possible solutions talk of either using a key... [Read more]

Heating problem between upstairs and downstairs radiator's?

I have a alpha eco 240 ocean.. My upstairs radiators are hot but downstairs are cold! I was told it was the fi... [Read more]

Pulsing(varying hot/cold) output from combi boiler?

When using my ravenheat combi RSF boiler the output will sometimes pulse from hot to cold a number of times, v... [Read more]

Help with Worcester greenstar ri?

Hi, drained a central heating vented system today to fit a new rad valve, turned the cold water back on and re... [Read more]

Help with Worcester greenstar ri?

Hi, drained a central heating vented system today to fit a new rad valve, turned the cold water back on and re... [Read more]

no power on performa 24?

can anyone help...i have no power at all to my boiler. i have tried the fuse but still it doesnt work. please ... [Read more]

vaillent boiler kicks in when cold has been running, is this normal?

after i've run my cold tap on my newly installed vaillent boiler, ecotec 28, the bioler fires up for a few sec... [Read more]

My hot water runs cold after a few mins?

How can i increase the water pressure in my worcester 30cdi combi boiler. Cannot locate where the white key fi... [Read more]

bittony 80 boiler in caravan?

when i ask for hot water it goes cold and rads go hot with boiler being set for water, heating not swiched on.

Vokera Linea 735 combi?

Boiler won't fire when hot water is turned on but temp. rapidly goes up on digital display whilst the tap is r... [Read more]

hot water not going to the shower?

Hi my hot water will not go through to my shower it gets hot then goes cold again the little clock which on ... [Read more]