How to mend ... Some Rads Not Hot

grundfos 15 50 130 heating system ?

changed a radiator , flushed out another , balanced all radiators but still have some red hot others hardly wa... [Read more]

Hot water go,s cold?

I have a worcester 24i combi boiler when we use the shower it runs hot then cold for a min then bacck to hot ... [Read more]

When the hot water is turned on for a shower the rads get hot ?

When the shower or bath hot taps are turned on the radiators in house get hot even though they are turned off

How can I fix boiler?

I have a baxi solo 3 PLF 60 when it fires it cuts out after 1 minute, leaving "boiler on" light on and then ma... [Read more]

glow work swiftflow 75/80/100?

I have no hot water or CH. Problem started after removing a radiator to decorate a spare room. Low pressure li... [Read more]

no hot water on baxi instant 80?

I have no hot water , boiler fires on pre heat but heats rads I have changed diverter valve head , fault findi... [Read more]

My rads are heating when I try to fill a bath?

When I turn my hot water on to fill a bath my radiator heats up

ISAR m30100 won't stay on for the CH. ?

Hi all, having a problem with my ISAR m30100, I have hot water but it won't stay alight for the CH. The thermo... [Read more]

Potterton Netaheat M11 no heating no hot water?

The boiler lights up and gets very hot and then closes down. We have replaced pump and fan. Zone valve wor... [Read more]

Glow-worm 30cxl?

Started off blowing 3amp fuse in boiler, water cold but heating working ok, engineer came out and fitted a ser... [Read more]

Vaillant 831 PCB issue?

The boiler is very intermittent when it comes to putting the Rads on, the hot water is fine and has no problem... [Read more]

Boiler cutting out after few seconds?

I have Puma 80e combi ,was working fine but a couple of rads were sludged up and not heating evenly drained th... [Read more]

heatslave 9.24 no pressure / hot water?

I bleeded my rads whilst the heating was on which has caused issues with the boiler. it's now not working with... [Read more]

vaillant 824e turbo max?

rads get hot go cold wont fire back up ,have to swich off then back on

Halstead finest gold boiler?

Hot water ok. radiators upstairs ok, downstairs rads working occasionally, pressure 1.5 bar but cannot fill w... [Read more]

how do I refill my glow worm boiler or bleed it?

re-filled rads after installing additional rad. Bled all through - OK. Turned on pump - clanking and knocking ... [Read more]

Central heating radiator doesn't gets hot sometimes and sometimes does?

I have a potterton kingfisher cf 50 boiler.My up stairs ch rads is fine but down stairs one of them is warm nd... [Read more]

my down stairs rads sometimes gets hot nd sometimes not?

My down stairs rads doesn't gets hot few days and after few days it gets hot again and then again stop gettin... [Read more]

Loud clanging/Glow-worm Boiler?

I have a Glow-worm Mark2 (oldish) boiler and the pilot light works, but when it fires up, it (and the pipes) m... [Read more]

Y Plan - Mid Position Valve 'fault'?

Hi, I have BGMVSP-23 'mid position' valve. (I believe a Y plan setup) Basically the pump only runs when ... [Read more]