italie |
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MAME owes italie many thank yous, hah
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Reged: 09/20/03
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Posts: 15246
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Loc: BoomTown
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scratch that.
12/26/10 07:57 PM
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> I have a Carrier Gas furnace, PAV58. Just put in the new thermostat, had to run a new
> common wire as the previous owners were not running one.
>
> Seeing issues with the thermostat now where 24V is dropping out just before the heat
> cycle completes. It loses 24V for about 5 seconds, comes back right after. This is
> causing issues with temperature settings, as the thermostat doesn't have a battery
> backup.
>
> I'm wondering if something energizing on the new thermostat (Fast TS21) that is
> causing the dropout, or it's the furnace and this behavior is what killed the last
> thermostat. I'm betting on the latter...
>
> Any common issues on the control board to check?
Code 33 thrown on the furnace, looks like I've got an airflow issue that is throwing the furnace into failsafe.
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scratch that.
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