Question about Coleman Mach III Air Conditioner

1 Answer

A/C runs for 10 min then throws breaker

In 87 Bounder - when plug in 30 Amp they run for 10 mins then throw the main breaker. Air is cold when running and you can keep resetting the breaker and it runs again.
Unit has been in storage for three years in AZ
The control box where the breakers are does get very hot to the touch.

I plugged the unit into our house 20 amp when first bought it and they ran for couple of hours before throwing the breaker. When I ask the service man that checked the rv out he stated that was because I had it plugged into a 20 amp breaker ?

Not sure what type of service shop to take it too. We are currently at a campsite - first time we have used the rv - and of course in MEM so hot and humid.

Appreciate any info

Thanks
Ron

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 53 Answers

The 30amp breaker is bad but when running on a 20 which is good its not enough of amps to support thats why it ran for 2hours before it ..so try changing that breaker to a new one

Posted on May 16, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
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.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

4 Answers

I believe I might need to change my (20 amp) breaker switch that is running on 10-2 wire which supplies power to my Rheem Classic 10 Seer. I'm not sure if I need to have 220V of power on a 30amp...


Hello, the unit runs on 220 volts that's why # 10 wire must be used. The best bet is to use a 40amp breaker for 220 volts, gives the circuit more protection.

Sep 04, 2011 | Heating & Cooling

1 Answer

Have Goodman GDS81155CNA, throwing open high limit relay. Have to pull main breaker to get to reset. I have already taken the entire furnace apart and cleaned it (completely, motort, evap coil cleaned,...


What about the safety limits for over heating? You have tackled all obvious problems, I am only throwing this out there because while the high limit is jumped out, to get the open high limit is definitely strange. So i would be tracing my wiring backwards from the relay to see what else is in line with it. This is not a solution but only a suggestion before running out to purchase the main control board, as most places will not accept a board back if that is not the culprit. Good luck with this one it leaves me slightly puzzled??

Jan 07, 2011 | Goodman GDS81155CNA Open Flame Mid-Size...

1 Answer

Blows cold but shuts down no freeze up


Check the capacitor. It should be a dual capacitor , runs both compressor and fan. This sounds like your problem only because both the compressor and the fan go out together. Good Luck Hope I helped

Dave

Sep 16, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

My outside unit runs a little while then shuts off.


More likely the out door fan motor has bad bearings and that would cause the out door unit to run for 15 to 20 min but it could be low on freon
when the out door unit runs after 3 to 5 min the larger of the two copper lines going into the unit should be ice cold

If the thermostat you just installed has a time delay that will keep the indoor blower motor running for up to 5 min after the unit shuts off

Sep 01, 2009 | Honeywell Heating & Cooling

1 Answer

Throwing breaker


Throwing the MAIN BREAKER should not happen. Calculate the distance to your main box. Tell me the wire gauge or breaker amperage. Whatever you do, do not get a larger breaker! If its a breaker on this unit Its probably doa with current leak possibly. DO NOT USE fire hazzard IF SHE TRIPS!!! let me know if its your main breaker inthe house. Hopefully you dont have crappy cloth wiring.

Aug 17, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Dryer is flipping breaker after 10 minutes into dry cycle.


You have a weak circuit breaker . Should be a 30 amp or higher . If you have access to an amp meter , split the dryer cord , separating the 3 wires (do not remove the insulation ) . If you have a black round cord ( 4 prong ) , carefully slice into and remove the black insulation in a small portion only . Check the amps on both outer wires while running dryer . Make sure the amps being pulled are lower than the circuit breaker amps . On a black cord , test the black wire and the red wire amps . If the dryer has a short , it would not run for 10 min and then throw breaker . It would be almost imediate . A bad breaker will gradually get hot and then flip , but check the dryer amps anyway to be sure .

Aug 15, 2009 | Estate TEDX640JQ Electric Dryer

1 Answer

Roof Top A/C Throwing Main Breaker


do you have an amp meter. when the main is tripped what is running? maybe the main breaker is going bad. I dont think you are pulling more than 20 amps when everything is running. not unless the fan on the A/C shorts to ground when it gets hot????

let me know

Jun 22, 2009 | Dometic Rooftop RV Air Conditioner

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

187 people viewed this question

Ask a Question

Usually answered in minutes!

Top Coleman Heating & Cooling Experts

Bill Long

Level 3 Expert

587 Answers

paulcarew

Level 3 Expert

2458 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

Loading...