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Old 09-10-2012, 07:28 AM   #1
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Heat pump. Help!


I woke up the other day to a smell and smoke coming out from the kitchen ac vent. I went and check the ac unit and shut it off. I notice that the heat coils are coming on when the ac unit stops. The coils are located on top of the inside unit. I remove the top to look at the coils, I started the unit and ask my wife to move the thermostat up and the coils got red hot. Can someone plz help.

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Old 09-10-2012, 07:51 AM   #2
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Heat pump. Help!


Sounds like your sequencers are energized.

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Old 09-10-2012, 08:03 AM   #3
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Heat pump. Help!


Is the sequencer the one that have the wires connected to the coils?
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Old 09-10-2012, 08:52 AM   #4
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Heat pump. Help!


Yea there will be 4-5 wires connected to each side and mabe two or three sitting side by side depending on how many heaters you have.
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Old 09-10-2012, 09:06 AM   #5
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Heat pump. Help!


Ok I'm going to remove it now then going to pick a new one. I'll keep you in touch, and thanks a lot for your help!
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Old 09-10-2012, 01:13 PM   #6
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Heat pump. Help!


Ok I got a new sequencer but still the heat coils keep coming on. I remove the top part of the vents to look inside,I notice the bottom heat coils are the ones coming on. Any other suggestions?
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Old 09-10-2012, 01:36 PM   #7
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Heat pump. Help!


do you have a multi- meter? That you can check ohms,volts ect. how many sequencers are on your furnace? Is the stat set to cool? What type of furnce do you have? You will have to back up and check the stat on your wall to see if it is calling for cooling or heat and work your way back.
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Old 09-10-2012, 02:52 PM   #8
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Heat pump. Help!


Yes I do have a multimeter, what I notice on the old sequencer is that looks like it was melting. The unit have 4heat coils,2on top 2 on bottom, the bottom ones are the only ones coming on. There's only one sequencer for the unit. The brand name of the unit is a janitrol. What I'm suppose to check on the stat? And I really appreciate you taking your time to help me!!
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Old 09-10-2012, 03:07 PM   #9
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Does the power needs to be on to check the stat?
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Old 09-10-2012, 03:14 PM   #10
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Heat pump. Help!


Need to know what you read between red and yellow and red and brown, did you make a diagram of the wires when you removed the old sequencer so they are placed just like they were?
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Old 09-10-2012, 03:16 PM   #11
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Heat pump. Help!


Check it in the cooling mode
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Old 09-10-2012, 03:17 PM   #12
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Heat pump. Help!


Ok,the only thing is I don't know which setting to use on the multimeter,lol!!
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Old 09-10-2012, 03:19 PM   #13
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Heat pump. Help!


put it on volts
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Old 09-10-2012, 03:36 PM   #14
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Ok I did it says 0 when I test the yellow,and 0 for the brown.im using the ACV setting.
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Old 09-10-2012, 03:44 PM   #15
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If you are in cooling mode you should read 0 and 24-27 vols between red and brown your stat sounds bad as well, if you put a new stat on be sure to shut down the power, breaker on the furnace so you dont blow it out

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