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Potterton suprima

Right then, an update on this. I had a plumber come round and fit a new heating pump, but unfortunately the problem remains :( The heating comes on for 20 minutes, and then the boiler stops firing and won't fire up again for around 4 hours. So I'm guessing the fault lies with the boiler. Need to...

No, nothing out of the ordinary. I had a plumber come round to install a new towel rail in the spring and not had my heating on since then - could he have turned a valve off or something?

Overheating and cutting out. Not touching thermostat

Yes it's on max. It works fine for 30 minutes then goes off. Potterton model. Amber light constantly on so it's calling for heat.

Sorry I meant x400. I only have 3 rads in the whole house as it is a very small one bed. So won't need much of it.

I'm going to tackle this tomorrow by draining the system, and putting in some x300. Can I put this straight into the f&e tank or is it better to go in one of the radiators? If this doesn't help I'll install a new pump. Thanks for all your help John, much appreciated.

Yes I'm poor! Maybe you're right there, only been in my house for a year so not sure.

Is Wilo any good? https://www.screwfix.com/p/wilo-ssrs2501-replacement-central-heating-pump-230v/5082v

When I turn the hex head there is a lot of water coming out. Thought it was just supposed to be a dribble?

It doesn't come out with great force. More than just a dribble though, it goes up in the air before down. Downstairs rads are just a dribble.

living room

No I haven't tried a chemical clean - I'll google for a guide. I'll have a look in the f&e tank tonight.

No but I did wonder about these. What do they do?

Here is a photo

I will take a snap when I get home. The air in system was fixed by bleeding a valve in the airing cupboard on the tank and by bleeding the rads.

Thanks I'll try that. No idea how old but it does look old. There is no screw to bleed it, it has a hexagon shaped cover. I just unscrew that?

Hi, I have a problem with my central heating. Basically, even if I put the thermostat up to 30, the heating switches off after around 30 minutes or so. The house is only luke warm at this stage hence I need it on for longer. Any idea what is causing this? I did previously have an issue with air...