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Thanks Sooey.

I'm willing to learn. What is the correct number of quotes required for work on a small house? So back on topic. Is a filter on the return legal. Is it wise and if not why not.

I have had quotes from 4 CORGIs for a boiler replacement in a small property. 3 of them have quoted £300-£350 for power flush if we keep the existing 4 radiators and suggested we'd be better spending an extra £150 or so on 4 new radiators and pipes. However one has come up with a really...

Many thanks! ...and Respect for knowing the specific boiler.

LOL! I'm still impressed. Is the overheat stat jubilee clipped to a pipe on the top left hand side? So what do you reckon? Solenoid sound dicky?

I know she looks good with her front exposed but I'm afraid to say she's just not that kind of boiler! Nansag did f**king well didn't he. Bet he used to take teacher an apple! :-)

In freaky twist a friend inisisted it was the 3 way valve and suggested "touching it" to see if it was working. To humour him I touched the 3 way valve and turned the switch to on. Blow me, if it didn't all fire up like a good un. Now it's 'working' the resistance across the two terminals is...

Ok have checked again. Thanks Agile. Set to 20K Ohms the multimeter reads 5.3 across the terminals shown here. http://tinyurl.com/yofb6t I'm guessing that's 20*5.3 - 106000 ohms. Given the suggested figure of 2k-4k, does that suggest a knackered solenoid? Can anyone recommend a good...

snip

Resistance across the terminals in the pic is about 600-1000 [1] when on, and 0 when off. [1] Dunno what the units are.

Next question is how to I measure the resistance of the Solenoid. How do I get at it? Or is measuring the resistance across the two spade connectors on the gas valve effectively the solenoid resistance?

Christ, you guys know your stuff. Right, here's the gas valve: http://tinyurl.com/tofb6t You get 240v across those terminals when the water switch is 'on'. DOes that tell us anything? Is the solenoid behind the round alloy cover? Here's the cct: http://tinyurl.com/ua39tx I've...

Have no fear, I'm not planning to *do* anything beyond investigate. If the problem seems trivially easy to solve or a required component trivially easy to fit I might do it. If I've got the slightest uncertainty I'll get a CORGI in. I don't want to get blown up or suffocate in my sleep. (Well...

Thanks a lot, that's a massive help. I would imagine it's 1984, I suspect it may not be the most efficient boiler in the world. Personally I'd rather avoid the costs of replacement but I'm planning to let the house out soon and I'm tempted to replace it for the sake of the tennants. Will...

My old combi boiler refused to fire up today. It's done it a couple of times in the past and seems to sort itself out when left alone. However I'd like to get to the bottom of it. The pilot light is lit fine. All the switches seem to work. (I can hear relays operating as apporpriate)...