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Old 06-29-2009, 08:34 PM   #1
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Air handler only works in manual


Not having dealt with a/c units before I was wondering if anyone could tell me.....the outside unit seems to be working fine and the handler fan works on manual but not on auto. What voltages shoul I read and where to check to see if the thermostat is working? After i verify the t-stat is working what else should i check?

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Old 06-29-2009, 09:41 PM   #2
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Air handler only works in manual


The fan switch is either dirty or bad on the thermostat sub-base

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Old 06-30-2009, 02:14 AM   #3
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Air handler only works in manual


T-stat is the problem..
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