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We have a Trane heat pump that is blowing cold air when on…

Customer Question
We have a Trane...

We have a Trane heat pump that is blowing cold air when on heat setting

Contractor's Assistant: Did you double-check the thermostat's settings? And what about the filters?

Changed the batteries in the thermostate and changed it to heat again. no difference. filter changed a couple of months ago and changed again yesterday

Contractor's Assistant: Do you plan on doing the work yourself?

Yes if possible.

Contractor's Assistant: Anything else we should know to help you best?

Outside unit is not running

Submitted: 7 months ago.Category: HVAC
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Answered in 57 minutes by:
12/5/2017
HVAC Technician: Gaztech, HVAC Technician replied 7 months ago
Gaztech
Gaztech, HVAC Technician
Category: HVAC
Satisfied Customers: 924
Experience: Owner at Gaztech
Verified

Hi I am Gaztech1, a independent technician, I will assist you with your issue.

Don't forget to rate the 5 star rating AT THE TOP OF PAGE if we are done. this will credit me for assisting you.

Whats your indoor unit exact make and model?

Gas furnace or electric air handler?

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Customer reply replied 7 months ago
electric furnace with heat pump[
twe036C14FBO
Customer reply replied 7 months ago
the heat pump is upstairs outside and the furnace is in the basement
HVAC Technician: Gaztech, HVAC Technician replied 7 months ago

There are many possibilities for your issue,

The first thing I do is set t-stat to start heatpump and with my volt meter, I mesure for 24V ac going to outdoor unit at connection C and Y

Is this something you can do?

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Customer reply replied 7 months ago
there no setting on thermostat to start heatpump. the heater is on. My VOM is at our house that is for sale.
HVAC Technician: Gaztech, HVAC Technician replied 7 months ago

I'm confused, do you mean your t-stat is blank like dead, nothing on display??

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Customer reply replied 7 months ago
sorry, the heatpump should be started.
the VOM is what's missing
HVAC Technician: Gaztech, HVAC Technician replied 7 months ago

I will opt out to let another tech hel you.

Please do not respond till you get a responce.

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HVAC Technician: gotoman for ac, HVAC Technician replied 7 months ago
gotoman for ac
gotoman for ac, HVAC Technician
Category: HVAC
Satisfied Customers: 5,349
Experience: 51 years of experience install design and repair of all makes and models of AC
Verified

Do you still need help. Russ

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Customer reply replied 7 months ago
we still need help
HVAC Technician: gotoman for ac, HVAC Technician replied 7 months ago

Russ here. When in heat setting go outside tom outside unit and check to see if unit is running. If it is feel the large copper line at bottom. see if it is hot,warm or cold.. The Trane heat pump reversing valve usually fails in heat cycle. The reversing valve switches from heat to cool in outdoor unit. Let me know and I will get back with you. Russ

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Customer reply replied 7 months ago
The outside unit is not coming on
Customer reply replied 7 months ago
We replaced the thermostat and the outside unit and it just came on, stand by
Customer reply replied 7 months ago
copper is same temp as outside temp cool
Customer reply replied 7 months ago
correction. we replaced the thermostat this morning. the outside unit had not been coming on. it is now coming on but copper tube is not changing temperature
Customer reply replied 7 months ago
the wrapped line is cold
HVAC Technician: gotoman for ac, HVAC Technician replied 7 months ago

What is model number of thermostat. Y may have to set it up for heat pump. Russ

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Customer reply replied 7 months ago
Honeywell RTH2300B We set to heatpump on the bottom
Customer reply replied 7 months ago
We have to take care of something be back soon
HVAC Technician: gotoman for ac, HVAC Technician replied 7 months ago

Ok I am on central time talk to you about 545 CSD. Russ

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Customer reply replied 7 months ago
We are ready when you are. Sorry about having to leave yesterday but we had to take care of an issue.
HVAC Technician: gotoman for ac, HVAC Technician replied 7 months ago

Make sure on the back of thermostat it is set to factory settings on the right side. On left side to HE. With this thermostat you will not have auxiliary heat on emergency heat. You do have O/B connected correct. Russ

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Customer reply replied 7 months ago
Hey Russ, replacing the thermostat worked once we got the wiring correct. Thanks for your help
HVAC Technician: gotoman for ac, HVAC Technician replied 7 months ago

You are welcome. I will open rate box for you. Thanks Russ

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