Ask Experts Questions for FREE Help !
Ask
    straysnake's Avatar
    straysnake Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Sep 24, 2011, 02:50 PM
    Trane heat pump doesn't switch from heat to cool
    Just noticed a problem relating to my Trane Weathertron thermostat (8 wire system)that is connected the Trane heatpump. The Green wire on the G terminal (fan) was touching the Orange wire on the O terminal (cooling valve).

    Might this be causing the system not to switch from heating to cooling?
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
    Ultra Member
    		  
    #2

    Sep 24, 2011, 05:56 PM
    If your G and O circuit are touching it will never go into heating mode. Separate the two wires and give it a try.
    straysnake's Avatar
    straysnake Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Sep 24, 2011, 11:40 PM
    Thanks T-Top. I separated the two, and it works indeed!
    My problem actually was that the system didn't go into cooling mode. I had several things done and am trying to determine which fix actually worked.
    First we changed the electrical board which didn't change anything - it just heated. Then I noticed that the orange wire connected to the cooling valve was disconnected further back. Once we connected the wire it just cooled. Now the two wires are disconnected and it works fine.
    Can you do a great favor and explain to me why the two wires touching will cause the system not to change to heating mode. Can you believe this?? The HVAC service man offered to come Spring and fall and disconnect/connect the orange wires, because he didn't know where to look. I'd like to give him the technical explanation.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Heat pump suction line stays very cool in heat mode [ 0 Answers ]

My two rheem compressors sit side by side outside. Both SEEM to work normally in heat mode. HOWEVER, the smaller 1.5 unit gets no frost buildup at all and the lines stay lukewarm both outside and at the airhandler in my attic. Aux heat comes on for both units when temps dip below 35 dgrees as I...

Goodman heat & cool pump troubleshhoting pressure switch circuit not closed [ 0 Answers ]

Heat pump suction line stays very cool in heat mode [ 0 Answers ]

My two rheem split sytems are side by side outdoors. The 1.5 ton unit for my upstairs area seems to work OK, but the freon lines never get close to hot at the compressor or in the attic at the air handler. The other unit is 2.5 tons for the other two floors of my house. The suction line for this...

Trane heat pump - fan turning but no cool air in the house [ 29 Answers ]

Hello, I have a trane TWR024C100A1 heat pump, outside unit that today when I turned the a/c on the air would not blow cold. I check the wiring inside of the honeywell thermostat and it is wired properly. When I went out back to look at the heat pump it sounded like the fan was stuck so I...

Trane heat pump blowing cool air [ 1 Answers ]

Have a older trane heat pump that is blowing luke warm air on emergency heat setting, worked fine last year, new filter, breakers good, I removed the panel on the air handler and feel only luke warm air, about the same as the vents

View more questions Search