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Potterton Suprima lock out problem - overheat stat?


 
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sparkybird

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PostPosted: Mon Feb 06, 2012 6:05 pm Reply with quote

Hi there

Hope someone can help!

Power was switched off to the boiler today and at switch on, it wouldn't re-ignite. Pressing the reset button resulted in unsuccessful tries then then 'lock out'. I read in the literature that switching off the power could result in the overheat stat operating - so I'm guessing that it might be this. Is there an easy way to re-set it? Can this be done by a sparks or does it need to be gas safe?
The boiler was pretty cold when I tried to restart as it had been off all day
Thanks

SB
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simond

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PostPosted: Mon Feb 06, 2012 6:18 pm Reply with quote

New circuit board......

Poxi Batterton electronics again. Did you do an insulation resistance test?
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simond

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PostPosted: Mon Feb 06, 2012 6:20 pm Reply with quote

I'm assuming you are a sparks? If the polarity was reversed to the boiler you would get precisely the problem you describe......
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sparkybird

from United Kingdom

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PostPosted: Mon Feb 06, 2012 6:22 pm Reply with quote

Thanks Simon

BTW I should have mentioned it's not my boiler!

Do you mean IR test on boiler??? No. But I IR tested the circuit with the boiler isolated.

Customer moved in just before Christmas and # mentioned that they had had to reset it once or twice.

Is there a way to check the overheat thermostat first, before getting PCB replaced? I gather they ain't cheap...
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