Repressurising Saunier Duval F23E

[francd1]

Hi,

I have had low pressure on my boiler for a couple of weeks or so, just above 1 bar. We are due for a boiler service in a few days so I figured we'd wait till then to get it sorted as the CH and DHW seemed to be working fine.

I took a couple of rads off in the last couple of days to allow the walls to be plastered and I've left them off for now until we decorate.

Firstly, I was led to believe that removing rads wouldn't affect the CH around the rest of the house but I was sceptical at the time and now I think this may be contributing to my current issue which is....

I turned on the CH this morning and it worked fine, a couple of the rads were only warming up around half way so I bled the rads and now the boiler pressure is down at 0.

I've looked at other posts but I don't seem to have any isolating valves or taps at all on any of the pipes so I can't see any way of repressurising the boiler at all.

I am happy to pay out for an engineer (in fact as above, one is coming in a few days) and will even pay out for a new boiler if necessary (sounds like it would be a good idea with the comments I've seen on SD) but if anyone can give me a hand to get the pressure back up in the meantime that would be great.

One last thing, the boiler has been leaking for a while which I don't think is the cause of this but may be contributing.

Look forward to hearing from anyone that can help

 

[francd1]

Finally found the filling loop after taking the kitchen units apart. I've got the pressure back up to 1.5bar but now a warning light is on (I think it's the airflow light?)

Any ideas? Also my question regarding taking rads off stands.

 

[mickyg]

try resetting it. Can you give the exact boiler model? any info you can find? i suspect this might be a rare model of sd that followed on from the infamous thelias.

 

[francd1]

Not sure of the exact model, the info near the controls is as follows: Thema F23E Adjusted G20

If by resetting it you mean turning it off and on, I've done that. That clears the air circuit warning light when I turn it back on but as soon as I turn on CH or DHW the light comes on. It stays on constantly for a while and then starts flashing.

 

[mickyg]

unfortunately this is quite a rare boiler that was only produced for 2 yrs.. 2000-2002. THe manual doesnt seem to explain what the light conditions indicate. Your best hope is to find a very good local repair engineer, or call Group Service(vaillant/glowworm) who can offer you a fixed price repair or service contract.