How to mend ... Cold Radiators Hot

What is causing my boiler to randomly operate the central heating?

My boiler, a Potterton Puma 80e, works fine on the hot water cycle, but randomly operates the central heating.... [Read more]

Vokera Excell 80 SP?

When we run our shower at home, it switches between hot and cold water every 15-20 seconds or so, and has been... [Read more]

potterton 16/22 not staying on?

i have recently drained and flushed the system and refilled it with a suitable inhibitor but now the boiler i... [Read more]

Sometimes we have hot water, sometimes we don't! ferroli 80e boiler?

Help! Our boiler sits at about 2 bar of pressure. We have had problems with hot water going cold occassionaly,... [Read more]

ferroli mondena boiler?

when the domestic hot water tap is turned on, the water runs hot for a few seconds then runs cold, but when th... [Read more]

Cold radiators Ferroli Optimax 25c?

My newly installed combi gives instant hot water from the tap but I have to turn my room stat up to 30 before ... [Read more]

Only cold water from hot tap?

I have a Myson boiler with hot water tank - tank has two pumps one for rads and one for hot water - both worki... [Read more]

iv got a problem with my alpha combi boiler?

the pressure kept going up on my alpha combi boiler, the plumber said it was due to a leaky valve on the filli... [Read more]

Radiators suddenly gone cold!!!?

I'm at my wits end!!! This is now my third posting about this and I really think I'm going to scream! 2 out of... [Read more]

Radiators suddenly gone cold?

This is my second question about this, sorry. I have 8 radiators in my house, two of which are open. Very re... [Read more]

Central Heating Control?

Every ten days or so the central heating system ignores the programming set into the clpock programme. It rem... [Read more]

Intermittent Fault Vaillant turbomax VUW 242E?

How can I fix my Vaillant Turbomax VUW 242E? My boiler is 8 yrs old. The flame indicator illuminates but th... [Read more]

hot water runs cold?

My hot water runs cold and only runs hot when the radiators are working. What is wrong with my boiler?

not working?

my pump,pilot and everything seems to work,but as soon as my radiators get hot the system seem to continue to ... [Read more]

Central Heating System?

I fitted a new pump to the central heating pump a few weeks ago. Now the radiators are hot but the water is co... [Read more]

Radiator problems?

Hi all, i have a valliant combi boiler no mod number the central heating system running my radiators, the wat... [Read more]

gas central heating, 2 radiators cold, any ideas?

The combi - boiler seems fine, 4 radiators working fine, hot water also fine. 2 radiators stubbornly stone co... [Read more]

What's wrong with our boiler?!?

We have an old-ish Potterton Flamingo boiler that we inherited when we bought our flat 3 1/2 years ago, it isn... [Read more]

myson velaire standard domestic oil boiler keeps cutting out?

AFTER INITIAL START UP THE BOILER KEEPS CUTTING OUT. THE WATER RUNS COLD BEFORE BURNER STARTS AGAIN, RADIATORS... [Read more]

Potterton Profile 30E keeps tripping on Central Heating?

My Potterton Profile 30E keeps tripping off and requires the reset button to be pressed to restart. This typic... [Read more]