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theres a clue for you...........

Each time ive repaired them by taking the solenoids apart and cleaning them, rather than buying a new gas valve (why kick a person when they are down, after all they've got a Chaffoteaux! :D ) The cost was £70.

Are you sure that the return valve under at the boiler is fully open?? Easy mistake to make sometimes

I've got my money on it being the Britony. Must have fixed half a dozen in the last couple of months. Each time it was the gas valve sticking. Agree with Chris. They fire at either full rate or a third.

It'll be the gas valve. If i remember correctly, the valve has 3 solenoids and each one is prone to sticking.

Make sure you put your pipe next to pusseys flap

Warm puss ---nice :D

Thanks for the reply Paul. I'll try what you suggested. PS:Do you know best place to source spares for this boiler? Nick

I was asked to look at an Alpha CD28. Plumber had been there and drained the system to move rad. When he filled up and tried to start the boiler he was met with both the LED's flashing intermittently. Fault guide says this is low pressure and i told him to check pressure, filling loop etc...

Then hes no electrician...

Check its not leaking via the bath overflow. The sealing washers that come with some overflows are dire. I always put a ring of good quality sealant at the back of the overflow before tightening it up

be useful info to know which model roomstat you tried to install

Where abouts are you. When i started off i 'buddied' up with another corgi. Especially on installs which are never by the book. Did the same as Gas4you and broke each install into smaller parts and concentrated on that aspect, rotating on removal, new boiler in , flues, pipes etc...

And how would the DHW switch turn on the heating side, which is happening with this boiler.

so anyway. If you came across one of these installs on a service or gsi, what would you class it as??

I'd start by thinking what could be making the combi call for heat. You say youve disconnected the clock so prob ruled that out. Could be a faulty programmer. Do you have a thermostat anywhere in your house. It could be faulty and switching the boiler on. Another possibility could be a...

So if you came across a few of these you would look the other way???

at risk and warning notice

i would say its 'At Risk' (AR). call the installer back to remedy

Fill up to 2 bar and then isolate your boiler from the system. Isolation valves hopefully under the boiler. Use large flat screwdriver and turn them off. Wait a few hours or so and monitor the pressure. If it stays still then leak on the system. Check new repair -whos to say that isnt...