Bolier Fires when programme off

Boggy · 20 Nov 2004

My boiler fires up even though the programmed time has finished. The radiators do not get hot at this time. This normally happens late at night approx. 11pm. The timer for the hot water and heating finishes at 9:30pm The red ON light is not lit on my programmer so the programme is not at an ON cycle.

I have a Potterton Prima F boiler and an ACL programmer

Any thoughts?

croydoncorgi · 20 Nov 2004

Frost thermostat?

breezer · 20 Nov 2004

in built frost stat?

ollski · 21 Nov 2004

I am guessing it's an s plan system?, ie 2 x 2 port motorized valves.

wilhelm · 21 Nov 2004

yep, ill agree with that one,
err although i have had the odd faulty (old) froststat.
mmmmm ......let me review my message, ah yes ive covered all the options without actually commiting myself. excellent.

wilhelm · 21 Nov 2004

aaahhhhhhhh is the boiler outside? this information was not in original question....!!
which means......... we need to know

kevplumb · 21 Nov 2004

i see big hole looming mate

wilhelm · 21 Nov 2004

that is nothing unusual

but lets have a laugh on the way down

kevplumb · 21 Nov 2004

diynot

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Bolier Fires when programme off

Boggy

croydoncorgi

breezer

ollski

wilhelm

wilhelm

kevplumb

wilhelm

kevplumb

DIYnot Local

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