fan stays on after room temp is reached

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  #1  
Old 02-10-06, 11:44 PM
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fan stays on after room temp is reached

It seems like this would be an easy fix but i'm not sure where to start on this one. If I turn the thermostat temp down below room temp the fan will turn off but when the unit starts up again it isn't blowing hot air unless i raise the tstat temp setting. I'm finding it easier just to turn the unit off once it reaches a comfortable temp then on again when it gets cool, so technically speaking my system is manual even when it is set in auto. I'm on a tight budget and I would like to fix it myself but it's been getting pretty darn cold at night. Any suggestions would be greatly appreciated.
 
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  #2  
Old 02-11-06, 07:28 AM
jhig1961
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is this a heat pump, if so is the out door unit running feel the suction line (large copper line) it should be hot. when you rase the temp 2 deg above room temp the heat strips (aux heat) comes on and my be the heat you feel.
 
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Old 02-11-06, 01:37 PM
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it is a heat pump with aux but the outdoor unit is working fine. it kicks on when i raise the temp and turns off when set temp is reached but the fan just keeps blowing for some reason.
 
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Old 02-11-06, 04:17 PM
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goalie22,
let us know what type of airhandler you have,
sounds to me at first glance that the fan sequencer
is at fault. but just to make your post clear, when you
say turn the unit off, what do you mean? you turn
the switch off on the thermo or at the breaker?
barry
 
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Old 02-11-06, 06:00 PM
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Is the heat pump turning on and off with the stat? so if it set for 70 the house steys 70. So its just afan problem or is it more.
 
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Old 02-11-06, 08:13 PM
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Originally Posted by brentwoodpmg
goalie22,
let us know what type of airhandler you have,
sounds to me at first glance that the fan sequencer
is at fault. but just to make your post clear, when you
say turn the unit off, what do you mean? you turn
the switch off on the thermo or at the breaker?
barry
barry, i have a carrier horizontal handler and a bryant unit outside. when i say turn it off i mean i switch the thermo from heat to off. the fan still stays on a good 30 seconds. i'm not sure if this is normal or not but from the breaker it turns off right away (no juice no fan of course). i have a mechanical mecury weathertron tstat. thanks to you and everyone else for taking the time to try and help.
goalie22
 
  #7  
Old 02-13-06, 10:49 PM
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fan staying on

The fan will take awhile to turn off. awhile is a couple of mins. It's normal!
 
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