Question about Coleman Mach III Air Conditioner

1 Answer

Wiring diagram needed RV rooftop coleman

Wires burned in RV fire. Wires are good about one foot from unit. One wiring harness with six wires, green, black, white, purple, yellow, red. I need a diagram for wiring and am going back with a hunter thermostat that will handle both heat and air.

Posted by on

  • 1 more comment 
  • Anonymous Mar 24, 2009

    i need a wiring diagram for a coleman rooftop AC unit i dont know where the thermostat wires hook up to

  • Dalton Jones Apr 28, 2009

    I need the wiring schematic for my thermostat also, I can hear it clicking but doesn't turn on. How do the wires connect to the thermostat?

  • Mike Butler
    Mike Butler May 11, 2010

    Make & model of AC unit?



1 Answer

Thanks for the response, to be more specific, the nine pin connector was damaged, but I was able to connect the wires back to main unit panel. I am ready to hook to the hunter thermostat and do not know which wires to connect to. This is my problem and I do not want to short something out. Hope this helps, I want to get it installed again. Thanks again for caring....Jerry

Posted on Aug 16, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

All of the engine wires in my 1987 e 350 RV burned up 460 motor

Hi David:
That is a really bad experience to have had happen. Serious sympathies to you.
I'm hoping/assuming that the fire did not destroy the entire unit and perhaps was restricted to electrical components.
I've a couple of suggestions that may be helpful.
First, I'd see if I could find a Haynes manual for the vehicle.
If I were to be faced with your situation I would probably sip a beer and ponder the engine compartment for a while. I'd try to determine if major components had been damaged, and then replace any that had been overcooked.
Most wiring harnesses have plug connections and I would try to get as complete a harness as possible from an auto salvage company.
Then, as each component was replaced or confirmed undamaged, I would try to splice or plug in the appropriate section of harness.
Reply as a COMMENT to this post if you wish to discuss more.
All the best.

May 29, 2016 | Cars & Trucks

1 Answer

How do I wire a Coleman Evcon 3500A916 furnace Model

Wiring Diagram for a Coleman Furnace - RV-Coach Online > Discussion Forum > RV - Insurance
... Furnace, Mark, 9-12-07. Need wiring diagram for coleman furnace Model # 7700B856 .... Amanda, 11-10-11. I need a wiring diagram for a Coleman evconpresidential model 7956c856 ... Need wireing diagram for coleman 3500a916 ... More results from

FURNACE Diagram & Parts List for Model eb15b Coleman ...

Dec 22, 2015 | Coleman Heating & Cooling

1 Answer

Wiring from coleman rv ac unit has 6 wires and duotherm rv ac unit has 10--what do you do with other wires

you need a wiring diagram of each to see what they are for. heat pump, auxillary heat, inside sensor, outside sensor, electric heat, gas heat there are many different applications.

Aug 20, 2015 | Coleman Heating & Cooling

1 Answer

Why did my RV rooftop a/c shut off when I unplugged the furnace?

Yes you do so it only runs on ac ,but when you said rooftop unit do you mean condenser or does unit have evaporator fan too

Jan 20, 2018 | Coleman Mach III Air Conditioner

2 Answers

My rooftop coleman AC main wires are burnt

Either the power supply wiring is too long - i.e. a 150 foot extension cord used to power it with poor plug blades?
Or the capacitor is shot, (more likely)
Disconnect Power supply, wait 5 minutes, try to start the unit WITH POWER DISCONNECTED. (will drain capacitor). Short capacitor with well insulated screwdriver, get the new capacitor replaced on ebay or local electrical supply or appliance store (not home depot)

Aug 30, 2009 | Coleman Mach III Air Conditioner

1 Answer


Well, it sounds as if you have a Coleman rooftop unit. If you have a start capacitor with a PTCR (Postive Temperature Coefficient Resistor) then it is different than if you have a Potential Motor Starting Relay. Why are you replacing the run and the fan capacitor?

Here is a link to the documentation that you need. If you do not have a Coleman and it is in fact a Duo-Therm, let me know the model number and I will be able to pull up the wiring schematic.



Rate this please!!

Jun 26, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Wires not connected on mod# 6759c707

If you google Coleman rooftop air conditioners on your computer, it will give you some dealers that sell that air conditioner and they should be able to help you or tell you where you can get the help.

Apr 03, 2009 | Dometic Rooftop RV Air Conditioner

2 Answers

Wiring Diagram Coleman Electra Heat Mach EL

I need the motor for a mach EL air conditioner. I can not get a model number of the unit or a number off of the motor. Can someone help me. Its about a 1980 built unit.

Mar 29, 2008 | Dometic Rooftop RV Air Conditioner

Not finding what you are looking for?
Coleman Mach III Air Conditioner Logo

Related Topics:

4,300 people viewed this question

Ask a Question

Usually answered in minutes!

Top Coleman Heating & Cooling Experts

Bill Long

Level 3 Expert

588 Answers

Paul Carew

Level 3 Expert

3238 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Are you a Coleman Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides