How to mend ... Heating System Cold

I have a problem with my hot water via a Potteton Puma 80e boiler?

I recently drained and recharged my boiler / radiators to change a TRV and get alot of air out of my rads. But... [Read more]

How do you test a circulation pump on a Raven Heat Combi boiler?

Ive got a Ravenheat Combi Boiler (one without a pilot light window). A fw weeks ago it just stopped working. W... [Read more]

how to fix my BAXI INSTANT 105E?

system is 4 years old. problem is the heating will not come on, i only get hot water. main boiler pilot light ... [Read more]

Ferroli Optima 901 -occasional Hot water problem?

Hi I have a Ferroli Optima 901 combi boiler and have recently been experiencing occasional problems with no ho... [Read more]

why are half of my rads staying cold?

with my central heating switched on and all rad valves open only upstair rads heating up and none down stairs.... [Read more]

Ferroli Optima 901 -Intermittent Hot water problem?

Hi I have a Ferroli Optima 901 combi boiler and have recently been experiencing intermittent problems with no ... [Read more]

Ferroli Optima 901 -Intermittent Hot water problem?

Hi I have a Ferroli Optima 901 combi boiler and have recently been experiencing intermittent problems with no ... [Read more]

F24 misbehaving?

For some time, there has been an intermittent problem of the HW tap in the kitchen failing to cause the boiler... [Read more]

Glowworm Swiftflow 80 not heating?

7 Year old glowworm swiftflow 80 (honeywell) has recently got a bit noisy and last week, out of the blue stopp... [Read more]

upstairs radiators cold downstairs hot?

i have a glow worm compact central heating system just recently the radiators on the first floor of my home do... [Read more]

Fault with my Glow worm Micron 50ff ignition?

When I start the system up the burner light and heating comes on for about 1/2 hr, but then turns itself off a... [Read more]

How can I find out what is wrong with the heater?

My home heating system is not working. The cold air will come out if you turn the A.C, but no warm air will co... [Read more]

How can i change the valve in my Vokera Excell 80SP combi-boiler?

I have a Vokera Excell 80SP combi-boiler in my house. We have it serviced every 6months and about the time we ... [Read more]

High pressure in Ariston microcombi boiler?

My Ariston Micro Combi 23mffi keeps rising up to 2.7 bar. I have drained the system to let it fall back to 1.7... [Read more]

no flow from combi boiler to radiators?

Baxi Genesis 80 - hot water ok but all radiators cold. When CH is switched on, the system fires up and the... [Read more]

I have valliant turbomax vuw242/1e 282/1e combi boiler,heating works fine?

hot water works ok when the heating is on all the time but when i turn the switch over to the hot water only i... [Read more]

how do i bleed my central heating combi boiler and radiators?

i drained my system then refilled it ,the radiators upstairs are hot but downstairs they are cold. have i mis... [Read more]

Water feed inlet is getting into the central heating system?

The Main cold water feed that feeds the hotwater is getting mixed with the central heating system. Can you tel... [Read more]

Potterton Puma 80 combi boiler hi press problems?

When Central heating turned on from cold my system has an initial hi press surge (1-3.5bar), after header temp... [Read more]

central heating problem old baxi back boiler?

i have a baxi back boiler which is not working properly when i turn on the heating only the upstairs get hot t... [Read more]