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Old 11-17-2011, 12:00 AM   #1
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fan will not reverse


i have a american standard heat pump that i just installed in my home.its used, very used like 1999 used but was told it works.i noticed that when i swapped modes from cooling to heating my fan did not reverse.what causes it to reverse?the fan motor is a newer replacement so i was able to reverse it by swapping the reversing connectors but would love for it to do it on its own. wait isnt it suposed to reverse back on defrost?oops.it hasnt been cold yet for long so hopefully nothings broke yet.thanks

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Old 11-17-2011, 04:35 AM   #2
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fan will not reverse


The fan motor is not suppose to reverse. The fan runs in the same direction in both heating and cooling mode. A valve inside of the heat pump reverses. Only the refrigerant flow reverses, not the fan.

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Old 11-17-2011, 07:12 AM   #3
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fan will not reverse


when it first went into heating mode you could hear the fan trying to reverse.kinda like having one of the windings in the motor charging in reverse.the fan speed was reduced as well, intill i reversed the switch.fan speed then returned to normal but in reverse.
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Old 11-17-2011, 08:03 AM   #4
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fan will not reverse


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Originally Posted by yodie213 View Post
when it first went into heating mode you could hear the fan trying to reverse.kinda like having one of the windings in the motor charging in reverse.the fan speed was reduced as well, intill i reversed the switch.fan speed then returned to normal but in reverse.
The fan does not reverse, if it does you have a problem. the solution is not flipping the direction. the condenser is designed as a plenum and is always supposed to have the fan blowing out.
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Old 11-17-2011, 08:31 AM   #5
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fan will not reverse


no fan ever changes polarity, direction.
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Old 11-17-2011, 12:18 PM   #6
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fan will not reverse


not even a slit unit?strange a buddy of mine also changes direction with the different modes.we watched it do it just a few days ago.what would cause it to try to change direction. the tech that came out yesterday said it was suppoesed to too.said my csr was going bad and to replace it.he could be full of it i really dont know thats why questions are asked.lol

Last edited by yodie213; 11-17-2011 at 12:21 PM.
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Old 11-17-2011, 03:43 PM   #7
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fan will not reverse


A weak capacitor can cause the fan to spin in reverse. BUT, the fan is NOT suppose to reverse. look at the fan blades, they only cut through the air when spinning in one direction.
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Old 11-17-2011, 03:53 PM   #8
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fan will not reverse


Ive dealt with that before.
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Old 11-17-2011, 06:51 PM   #9
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fan will not reverse


went i went home today i swapped it back to blowing out but now im not getting any heat from my line and my unit is constantly using the aux heat?uh and the control board is flashing 3 times too
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Old 11-17-2011, 06:52 PM   #10
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fan will not reverse


Read the error code on the panel.
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Old 11-17-2011, 07:12 PM   #11
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fan will not reverse


wow that clears it up there is like 7 things that could be wrong.grr


Last edited by yodie213; 11-17-2011 at 07:27 PM.
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