How to mend ... Running Not Heating

How can I fix my Saunier Duval Semia Condens boiler?

The Central Heating (CH) side works perfectly but the Domestic Hot Water (DHW) has developed a problem, thus..... [Read more]

baxi combi 80eco?

Hi I have a baxi combi 80 eco boiler. The system preasure was too high on examination but has now been bled an... [Read more]

on all the time?

camray 2 oil fired boiler. running all the time, even when hot water only, heating only and or boiler switched... [Read more]

How can I fix my Vaillant Turbomax Plus combi boiler?

Have recently drained and refilled system. Turned boiler on and after an hour or so pressure was around 2 bar,... [Read more]

Relay mode?

Have tried resetting this stupid remote now endlessly,freezing n full of cold and seriously sick of trying. Co... [Read more]

worcester greenstar 30cdi noisy when running heating?

hi my boiler is 5 years old and is running fine apart from when the heating is put on then it will make a ... [Read more]

f1 fault on 23 kw jaguar boiler?

boiler fires up on heating and hot water then goes into f1 fault change flame probe and pcb board replaced,fan... [Read more]

Vokera Compact 24 Fault?

No Central Heating or Hot Water The red light and fan are running constantly even when the switch on the fron... [Read more]

Potterton EP4001 - Time running slow?

The time on my Potterton EP4001 is running slowly, which effects the time my central heating is automatically ... [Read more]

pressure gauge on combi boiler?

I have a Ravenheat RSF 820/20T fanned combi the pressure gauge on it shows an increase in pressure above the i... [Read more]

siemens RWB9 Programmer Fault?

i have a fully pumped system with zone valves , one for heating and one for hot water, my problem is that when... [Read more]

Overlow spilling out hot water?

My overlow is running with hot water. The heating and hot water are fine so how do I find the pressure valve t... [Read more]

pump running continuously even though boiler switched off?

when my water is on my pump carries on running even when water has heated and boiler switched off. only stops ... [Read more]

boiler running but not heating rads?

my boiler was perfect when we turned it off for the summer now i have switched it on for winter and it is maki... [Read more]

Potterton powermax HE. Hot water but no heating?

I have a potterton HE boiler. I have no heating. The actuator is moving on the diverter valve and the pump is ... [Read more]

Vulcan 901 ducted heating unit?

The problem that I have is that I can start the unit with the wall thermastat the unit will fire up but th... [Read more]

Low boiler pressure valiant ecomax 830?

The pressure on my boiler is at 0.75 which is below the green bar so I have been trying to raise the pressure.... [Read more]

i cant bring my ferroli modena 102 out of central heating mode?

central heating running at all time,wont switch off, not responding to controls.

how can i fix my valliant turbo max 282?

pump seems to be running continuously but no heating.we do get hot water. I have to turn boiler off after usei... [Read more]

valliant turbo max 282?

valliant turbo max 282 keeps running even heating and hot water tap is off