Ariston micro combi 23mffi
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AdamsHeating
Ganger
Ganger
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Joined: Fri Aug 08, 2008 11:49 am

Ariston micro combi 23mffi

by AdamsHeating » Mon Mar 23, 2009 9:01 pm

Hiya guys, I;ve never worked on one of these babies until now and I have come up short on ideas. Can you help?

The problem is, not ch or dhw.

after following the mi flow charts it comes out to PCB ... of course it does! But i'm not too sure.

When there is a call for heat, the relay for the fan (O in the MI) is continually clicking with a spark on it... click click click click click ... only changing when the power is turned off or the rested button is pushed and held in.

the detection leads and the ignition leads are showing continuity... i am at a loss. please help!

Cheers,

Stu

AdamsHeating
Ganger
Ganger
Posts: 121
Joined: Fri Aug 08, 2008 11:49 am

by AdamsHeating » Thu Mar 26, 2009 5:22 pm

job done, no worries. two problems, one being PCB other being DHW flow switch.

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