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I think you've got the wrong thermstat, the rf is wireless whereas your old one wasn't

Reinsert the spindle but 'unscrew it' when you've pushed it as far as you can, although I say push very little force should be needed. When you've 'unscrewed' it till it stops refit the gland nut in the normal way but only finger tight. You should now be able to 'unscrew' the spindle some more...

Easiest, and most readily available bits, 22*22*15 tee (compression or solder, whichever suits you) then 15mm cu*1/2fbsp and 1/2*1/4 brass bush. Or as him above says :mrgreen:

Get it serviced, and dont forget to tell the service engineer that you have a problem. Quite a few poss causes of no heat!

oh dear!!!

Copper, copper, copper!!!!

If the immersion is fed by its own fuse then I'd remove said fuse in case someone, inadvertently, turns it on and stops the boiler again.

Why were the rads replaced; asthetics, leaks etc? System needs checking for correct instal/design, then, I would suspect a GOOD powerflush is what you need.

Have you thought about a replacement heat only boiler in same place as old one, probably the cheapest option

Personally i do 4or 5. Today however it was just 1. But to be fair it was getting floors up and finding blockages!

I would say it depends on the system and what exactly needs to be done, and how confident you are :mrgreen:

Not really, jobs that are booked in get allocated as and when the next local guy is available so in theory there should only be 1 job lined up for anyone. Parts jobs are a bit different, they have to be lined up to, usually, the engineer that ordered it.

Things have changed recently, the focus is now on getting the job done right, not in the fastest time possible. However for planning work in the office allow about a hour per job

No probs, I've been called worse than that :lol: Did yoy empty the boiler of water AND leave the drain point open?

Is that (0.9bar) the air charge in the vessel? And how exactly did you check it?

Get a gas safe registered engineer, gas advise on here is a no-no.

I'd agree with flameport, the expansion vessel needs checking, even if in your infinite wisdom it is "ok"

http://www.freeboilermanuals.com/pdf/baxi_disc/Combi-105HE.pdf Page 28.

Then its probably the venturi

diaphragm, possibly, or venturi. Had any parts recently?