How to mend ... Central Heating Boiler Up

Pump runs when boiler satisfied?

I recently moved my central heating pump so as to give me heating for my towel rail off the primary circuit. A... [Read more]

Radiaters heat up when domestic supply is running?

The boiler only heats the domestic hot water if the central heating is switched on, if the heating is switche... [Read more]

ace high boiler problem?

replaced diaphram and diverter valve service kit , ch working ok , in dhw only mode both central he... [Read more]

Drayton rf1 wireless system problem?

Recently moved home. I have followed all the Q&As on this site regarding the rf1 system in my new home. I pu... [Read more]

Ferolli combi boiler - I pressed the wrong button?

I was trying to fix the water temp on my parents' central heating boiler and touched the + and - buttons and t... [Read more]

blowdown running constantly?

the pressure relief valve on my combi boiler runs every time a hot tap is opened or the central heating is run... [Read more]

Problem with Powermax 155x boiler?

The green burner light has started turning off after 5-10 minutes of the hot water coming on. It won't go bac... [Read more]

combi boiler?

boiler will not supply hot water to the kitchen sink but will supply hot water to the bath . the boiler is sit... [Read more]

how to fix valance 835 boiler ecomax?

Error code f.25 and f28 are coming up. When power is switched on the temp rises to max 100degrees and then go... [Read more]

potterton suprima 40L hot water but no heating downstairs?

I have a Potterton Suprima 40L about 6 yr old. Had no problems with it over the past years. I have no central... [Read more]

when I turn on hot water tap, I hear a big noise, like a explosion?

My boiler is (worcester bosch 28i RSF), and it is 6 years old by now, regularly has been serviced and works wi... [Read more]

No hot water from Ravenheat RSF82E combi boiler?

I can only get hot water if I switch the central heating on permanantly. Even if I just set the boiler for hot... [Read more]

why can i not get hot water ?

if boiler is set to central heating and hot water I can get hot water but if boiler is set to hot water only i... [Read more]

Removed Radiator, now no hot water?

Removed rad from system and now no hot water. I have a Biasi M96.24sm boiler. The rad removed was an old rad... [Read more]

Why does the central heating come on when I select hot water only function ?

When I put on the hot water only it kick starts the central heating as well, I have a powermax 155 boiler

how can i fix my boiler?

my myson midas boiler as stopped working, no hot water or central heating, i have tried to relight it, but whe... [Read more]

How do I increase the pressure on my boiler?

I have a Baxi Combi 105 HE Boiler. I have recently noticed the pressure gauge dropping to around 0.5 bar or ... [Read more]

Help with central heating wiring please?

Have just fitted a Danfoss actuator in airing cupboard and a new digital thermostat in the hall. Problem is th... [Read more]

Not heating properly?

I have Potterton 50 boiler i just have changed the PCB as the engineer faulted for me. But after that, it did ... [Read more]

wiring a boiler?

how to wire a household central heating system.