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Question furnace house. Heat cool switch on furnace and put…

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Question Coleman furnace house...

Question Coleman furnace house. Heat cool switch on furnace and put a thermostat on and has heat cool and the AC runs whether there's a thermostat on the wall up the ball and someone got two wires from thermostat the other two wires go down to the condenser is there anyway to bypass all that crap

Contractor's Assistant: Did you check the furnace's filters?

It runs all the time with no thermostat hooked up on the wall on cool

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

Yes I am HVAC certified haven't had one do this before

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

Like I said it has two wires red and white going to the stat I put a bobo thermostat on it and is he cool on off no matter from starts on the wall off the wall ac constantly runs because it has that switch on is for heat and cool on calming is there anyway I can bypass all that and then you start wire

Submitted: 11 months ago.Category: HVAC
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Answered in 2 minutes by:
9/11/2017
HVAC Technician: airheatman, HVAC Technician replied 11 months ago
airheatman
airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 9,367
Experience: Furnace, A/C and heat pump specialist.
Verified

Give me a few more details/

1.Is this in a mobile home?

2.Did you just move here?

3Can you attach photos of this setup? (thermostat,swicth and furnace?)

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Customer reply replied 11 months ago
it's mobile home no I don't live there that's my sister's place it's been doing it for a while when it's on cool if Rhymes Rhymes runs at very don't shut off it has a red and white wire coming from the lower one that's an older Coleman it has a switch for cold heat on furnace not put a Braeburn thermostat on it that has heat cool off and the AC will not shut off when it gets to room temp I'm wondering can I bypass that switch on the furnace to run a new start wire to make it like a regular furnace would work
HVAC Technician: airheatman, HVAC Technician replied 11 months ago

OK now here is the reason I ask.Normally in an older mobile home installation, there will be two thermostats mounted on wall.One for heat with only two wires fed from a transformer in furnace and then a second thermostat for ac with at least 3 wires fed from a transformer in the outdoor unit.Are you there now?

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Customer reply replied 11 months ago
Now she's in bed
HVAC Technician: airheatman, HVAC Technician replied 11 months ago

We can definitely convert whatever is there to work with a single heat cool thermostat if you have the patience and can follow my lead.

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Customer reply replied 11 months ago
You can send me what to do I will do it tomorrow afternoon when I get off I can follow your instructions step by step
Customer reply replied 11 months ago
I do have the model number I can send you
HVAC Technician: airheatman, HVAC Technician replied 11 months ago

Pictures speak volumes so if you can take pics at attach here using the attach files button would be a great help.

Here is what I need.

1Pictures of thermostat and wiring

2.Picture of the heat cool switch on furnace

3.Model on furnace and outdoor unit

4. A picture of the components in outdoor unit with cover removed.

From there I can easily guide you.Go ahead and give me furnace model since you have it

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Customer reply replied 11 months ago
Model number is *****
HVAC Technician: airheatman, HVAC Technician replied 11 months ago

A picture of the furnace wiring diagram will help if you can get that.I have the DGAT wiring diagram but not the rt(not sure how much difference there is)

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Customer reply replied 11 months ago
Ok can I text you when I get over there tomorrow afternoon
Customer reply replied 11 months ago
Not that one
Customer reply replied 11 months ago
No It Dont have a board
HVAC Technician: airheatman, HVAC Technician replied 11 months ago

OK, we should be able to make it work anyway I just need to see wiring and components.It will be same principle.

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Customer reply replied 11 months ago
Tomorrow afternoon be fine
HVAC Technician: airheatman, HVAC Technician replied 11 months ago

Sounds good. Meanwhile take a look at this link and it may be helpful.Look forward to helping you

http://dms.hvacpartners.com/docs/1009/public/0c/ag-cbba-01.pdf

Scroll down to the section that discusses connecting thermostat

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