Hi,
I have a saunier duval system 400 boiler. Came home today and the low pressure light was on. Did a radiator bleed and re-pressurised the system, but the light won't go off. I'm guessing there is a reset switch I need to hit? Does anyone know where it might be hidden? I have no manual :(
Thanks.
Craig
No idea if you've looked here: >
Cheers,
william.
Hi William,
is it like a plastic x-shaped rod within a plastic round, threaded cylinder? If so, I found that, but it didn't 'press' :(
Craig
Have taken a pic of the switch.
Craig
D'oh, just realised it should be jutting out eh? Well, it's not, and the low pressure light is on, even though there is just over 1.5 bar in the system, cold. Sounds like it's engineer time.
Craig
That look just like the over-heat trip switch on my (different make/model) boiler. When it trips, the central part pops out (which yours doesn't appear to have done) and has to be pressed in again.
I assume you've tried turning the boiler mains off and on again?
Tim
Yeah, cut all power to the flat. Only left it 30 seconds though, might try a bit longer.
Cheers.
Okay, had all power off for a good ten minutes that time, still no joy.
Craig
Yeah, cut all power to the flat. Only left it 30 seconds though, might try a bit longer.
Cheers.
Well if your boiler is anything like this one
Tim
In message , Roger Mills writes
wot e sed
yeah, but if it ain't popped, I can't press it. oh well, popper must be busted!
hopefully got someone seeing it tomorrow. will post back results.
Thanks.
No! It ain't popped because it's an overheat trip, and your boiler hasn't overheated.
This button is *not* related to your pressure problem.
Hi Roger,
Thanks for clarifying, I thought it was a generic reset as that's how it seems to be described in most places!
Craig
I said I'd post back the result so here it is. The pressure switch was fine. There was a blockage at the vessel leading to the switch.
Thanks all.
Craig
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