Honeywell ST9400C

Notrub · 24 Sep 2012

I have a ST9400c programmer.

The backlit screen is flashing on and off as is the green neon that should indicate whether the heating is running. The heating does not get hot.

Can anyone tell me what is happening?

Thanks.

Dan Robinson · 24 Sep 2012

Its fooked, or has a loose connection.

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Honeywell ST9400C

Notrub

Dan Robinson

DIYnot Local

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