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Old 01-05-2016, 08:58 PM   #1
Join Date: Feb 2013
Posts: 47
3170 Heat

Why does cold air blow out of the ac ducts when the heat is on?

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Old 01-05-2016, 10:06 PM   #2
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Posts: 1,198
Are you running a heat pump? A heat pump does not blow hot air like a gas furnace or heat strips.

i2015 sunseeker 3050s. 2007 saturn aura
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Old 01-06-2016, 01:22 AM   #3
2012 Solera
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Comes up a lot on the forum. Set the thermostat to fan. Use + or - buttons to set fan to auto (not hi or Lo). Set thermostat back to furnace setting. Fan will now stay off with furnace, will cycle on and off with AC. Set on hi or Lo the AC fan will run continuously. Some like this as the fan "circulates the air" and the fan noise helps mask the furnace noise.
2012 Solera "S"
Calif SF Bay Area
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Old 01-09-2016, 12:35 PM   #4
Join Date: Feb 2013
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Thank you so much. That worked!!!!
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