Question about Coleman Mach III Air Conditioner

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RUNS ON FAN BUT COMPLETELY SHUTS OFF WHEN GOING TO COOL HIGH OR L

FAN RUNS BUTWHEM I GO TO COOL HI OR LOW STOPS

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Sounds like a faulty Switch.  Let us know if you need more assistance.  

Posted on Mar 11, 2009

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Posted on Jan 02, 2017

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1 Answer

Intertherm MGHA-070ABFC-05 will not run/cool


Multiple problems. Eliminate thermostat first. Remove face from wall and turn on breaker. If fan still runs you have a bad board or bad relay. If fan outside is running compressor should be too. These operate on same contactor. Verify you are getting 24 volts to coil side of contactor. If odf stops working and contactor remains pulled in you have a bad motor. If odf motor stops working the compressor will shut off due to overheating.

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Intertherm a/c hardly blows on low fan setting


are you saying the outdoor unit does run, then shuts off?

if not, there may be fuses in the disconnect

if so, it may be going out on low pressure, possibly high pressure....clean all coils, filter, blower wheel, inspect coil if possible

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The fan on my emerson microwave model#mwg9115sl stopped working and now it shuts off by itself is there a way to fix it or someone who i can take it to?


The fan primary function is to keep the magnetron cool while it runs, if the fan stops the thermal fuse senses an increase in temparture causing the oven to shut down. I suggest a tv technician or appliance repair man because there is dangerous high voltage present that can cause serious injury or death.

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Fan noise-fan lags speeds up to normal then slows and will eventually stop. This occurs on fan only operation (high and low) and cool high and low.


The bearings,or bushings in the fan motor are gone out,the friction eventually slows,or stops the fan motor.

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I have a 1993 yellowstone camper with a coleman wall thermostat. on the bottom of it- it has a heat/cool switch on one side and the other side has a low-high-fan switch. when we run it on low or high it...


These unit are set up for continuous fan operation when turned on. It does not have an automatic position on your thermostat such as in your house. Set the fan speed to what you are comfortable with and let the thermostat control the temperature.

Jul 21, 2008 | Coleman Heating & Cooling

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Fan runs, shuts down on cool


Sounds like a power supply problem. There is enough power to run the fan but when you turn it to cool the current draw by the compressor drops the voltage. The lower power light is telling you the answer to your problem.

Jul 17, 2008 | Dometic Rooftop RV Air Conditioner

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High cool not working


Compressors on these units runs at only one speed. The change to high cool is only a change in blower speed moving air faster over the cooling coil. I would have the running capacitor for the fan motor checked. A bad capacitor can cause your type of problem. The other problem could be that the high speed winding in the fan motor is bad. Try it operation in the fan only position through the two speeds. If it works in the low and high speed for fan only your problem could be in the selector switch.

Jun 23, 2008 | Dometic Rooftop RV Air Conditioner

2 Answers

High cool and low cool not working


Hi,
Pls check the following....
1) Fix the wire connector to Reversing vale
2) Check the Capacitor if this a low capacitance or (open) not function using Multi-tester.
3) Check the Selector switch if this is not function using Multi-tester . or check the PCB Board (if electronic your units) replaced the Board.

If not yet,go to the nearest repairman to repair that units.

Thank you,have a nice day.


Edgz

Jan 25, 2008 | Amana PTC093B50AJ Electric Heat Air...

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