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09-05-2012, 08:31 PM #1
New Guest
- Join Date
- Sep 2012
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- 1
Furnace switches to auxiliary heat while in cool
My Bryant/Carrier FB4ANF036 electric furnace/heat pump is acting strange. While have thermostat on cool-auto, the air will initially be cool then hot air will come out and I can smell the heating element kick on. If I switch the thermostat to off, the EM heat light turns on. Hot air continues to come out and the furnace will not turn off unless I turn the EM heat switch from normal to EM heat. The light then goes off and just recirculated air comes out of the air vents. I can repeat the above process an unlimited number of times. Cool air lasts for about 30 seconds before switching to hot air.
Any ideas??
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09-05-2012, 09:32 PM #2
Professional Member*
- Join Date
- Oct 2010
- Location
- Anderson SC
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- 2,471
Call a service tech to diagnose and repair. Could be wiring, thermostat, control board, relay etc
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09-05-2012, 11:51 PM #3
Regular Guest
- Join Date
- Jun 2001
- Location
- Moore, Oklahoma
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- 2,596
Is it a new house/installation or did it work properly then all of a sudden start doing this?
Agree with previous poster, a tech will need to look at it.
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