How to mend ... Ch Central Heating

potterton ep20001 programmer wont light hw?

my programmer will not light up the HW side of the display after a power out. If I select hw it switches the c... [Read more]

Spectrum Fuel-Miser Mk IV?

My central heating system has a Spectrum Fuel Miser Mk IV which provides: . Electronic temperature control of... [Read more]

valient turbomax 242eh central heating will not operate once it reaches tem?

242 eh installed with 3 rads the boiler works fine in hot water when in ch and hot water mode ch reaches temp ... [Read more]

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]

Hot water but no central heating?

Hi, having an odd problem with the heating today. i can get as much hot water as i want but cannot persuade... [Read more]

No Hot Water But CH is normal???

My Vokera Linea 735 boiler isn't heating up the hot water but the central heating is working perfectly. There... [Read more]

Burner fires up and CH comes on, even though not selected at switch ?

Having been impressed with the diaphragm solution I was given here in 2010, I have another problem now with my... [Read more]

My Worcester greenstarHE shows red light flashing and FO code & doesnt fire?

Just returned from a holiday and found CH doesnt work. Red light next to the triangle flashes and FO code flas... [Read more]

How can i fix my Potterton Puma 80, DHW won't work unless CH. is on?

My Potterton Puma 80, (permanent pilot), will not supply DHW. unless the Central Heating is also turned on.

heating system?

I had a glow worm 24hxi boiler fitted to my existing y plan system using the original controls(programmer,room... [Read more]

240 combi RSF - No hot water but CH works. Can I mend it ?

Hello, I have a 240 Combi RSF and very recently the hot water stopped being hot. When I run the hot water tab... [Read more]

potterton ep2000?

Central Heating slider is not working. Hot water seems OK and lights the boiler but no joy with the CH switch.... [Read more]

My boiler hits high pressure as soon as it starts up and faults. Vokera ?

My vokera linea HE faults as soon as it starts up whether it is for heating or hot water. I can see the pressu... [Read more]

Domina 80E CH fault?

I can get hot water easily and constantly but the central heating doesnt work properly. The CH comes on when i... [Read more]

potterton EP2000 (old brown one) problem - CH always on ???

I have a Potterton EP2000 - problem is when i try to put the HW slider on any setting i.e twice/ once/ 24hrs, ... [Read more]

central heating/drayton RF!?

my ch is controlled via a Drayton RF1 thermostat and wall mounted boiler timer/control box. The thermostat is ... [Read more]

how to fix my biasi riva compact he model m98 24sm/c2?

Biasi Riva compact HE, Model M98 24SM/C2. Not firing red and green CH indicator lights flashes continuasly, no... [Read more]

hot water and CH come on together when only one required?

my hot water and central heating comes on together when i only want one on i have a potterton back boiler wha... [Read more]

vaillant ecomax 824e flashing e20,e13,f20. How to fix it?

Thing is, that my boiler (which is vaillant ecomax824e) use to go through these codes e20 and then f 20, or e1... [Read more]

Halstead ace high boiler, ch not working?

my central heating is not working but the hot water is fine, think it may be the diverter valve but not sure