Coleman is a brand that provides stylish and reliable appliances. But to think that these factors will not cause any trouble in the normal working of your appliances would be wrong. No matter what the brand is, the machinery will cause disturbance when it has completed its life. For instance, if you own a Coleman Mach Air Conditioner then you will have to follow a proper troubleshooting in case of any issue.
If you don’t know how to perform the troubleshooting then stay with me because in this article I will be explaining everything from A – Z. First I will be talking about the common issues faced by the users and then I will dive into the details of troubleshooting.
Coleman Mach Air Conditioner Stops Working – Why?
If your Coleman Mach Air Conditioner has stopped working then you might experience one of the following situations.
- AC won’t turn ON
- AC won’t turn OFF
- AC won’t heat
- AC won’t cool
- AC compressor not working
- AC fan not working
Coleman Mach Air Conditioner Troubleshooting Steps
After you have made a confirmation that your Coleman Mach Air Conditioner isn’t working then you need to carry out the troubleshooting steps in order to resolve the issue.
1. AC Won’t Turn On
The AC will refuse to work if there is some issue lying within the unit. Consider two possibilities for it; either there is a faulty component present or the unit isn’t receiving enough power.
Tripped Breaker
The breaker is present in order to protect your unit from damage in case of power outage. If the breaker is tripped then it will not allow your AC to turn ON.
Blown Fuse
Take a multimeter and check the fuse. If the multimeter is showing no continuity then it is time to replace the old fuse with a new one.
Power Outage
It is common to conclude that your appliances won’t work in the absence of power. For this you need to make a confirmation regarding a power outage.
Faulty Thermostat
The thermostat in your AC is responsible for monitoring the temperature. If it becomes faulty then your air conditioner will not turn ON.
Faulty Wiring
Look for possible disturbance in the wiring. If found then remove it as soon as possible.
Solution
Make sure there hasn’t been a power outage in your area. Secondly, check whether the unit has been properly plugged in or not. Also check that the breaker is in ON position or OFF, if it is OFF then make it ON. Along with this, look for possible faults in the components and wiring. Make sure to get them resolved within time.
2. AC Won’t Turn Off
This problem is the opposite of the first problem. If your air conditioner is not turning off then look into the below mentioned problems.
Defective Thermostat
As mentioned before, the thermostat is used to monitor the temperature and if it gets defective then the AC will refuse to turn off.
Dirty Condenser Coils
Dirty condenser coils will make the compressor to work continuously so that the unit stays cool.
Defective Control Board
In case your unit has a faulty control board, it will cut off the compressor’s voltage supply which will result in your air conditioner not turning off.
Faulty Relay Board
Relay board is responsible for providing sufficient voltage to the compressor. If it becomes faulty then the compressor will stay deprived of the voltage.
Solution
Clean the dirty condenser coils and replace all the faulty components present in your unit.
3. AC Won’t Cool
If your air conditioner is not providing sufficient cooling then it is as good as dead. The reasons for this problem could be the following.
Dirty Outdoor Unit
Uncleaned outdoor unit will affect the overall working of your unit.
Wrong AC Size
Purchasing a wrong AC size can also affect the cooling in your room.
Clogged Air Filters
Clogged air filters will not allow the hot or cool air to pass through. This can cause future problems for you. Remember this thing that filters which are clogged are of no use. Make sure to clean them as soon as possible.
Refrigerant Leakage
Low refrigerant level means that it will be hard for the unit to provide sufficient heating and cooling.
Broken Fan
Fan is the most important component of the AC as it controls the cooling and heating both. Broken fan means that the process won’t be performed properly.
Wrong Thermostat Settings
Setting the thermostat temperature higher than the room temperature will not allow the cooling to take place properly.
Solution
Check the air filters and other components properly. Clean the filters and replace the faulty components with new ones. If you have purchased the wrong size of your AC then make sure to upgrade the size or change the room in which it is present.
4. AC Won’t Heat
Your air conditioner might not provide sufficient heating due to the following reasons.
Frozen Coils
In case your unit has frozen coils present, it will face difficulty in allowing the hot air to pass through. So it is important to make the coils unfrozen.
Low Refrigerant Level
Low refrigerant level means that the unit will face poor absorption of cool air.
Faulty Heat Slip
Presence of a faulty heat slip will not produce hot air and will keep the atmosphere cool.
Clogged Filters
As mentioned before, clogged filters will not allow the cold and hot air to pass through due to the dirt and debris present within them.
Solution
The very first thing as you all know is to clean the filters. Moreover, adjust the thermostat settings according to your requirements. Make sure to unfreeze the frozen coils and also replace the defective heat-slip.
5. AC Compressor Won’t Work
The reasons why your AC compressor isn’t working are mentioned below.
Faulty Overload
The main purpose of overload is to protect the compressor from overheating. In case the overload gets burned, the compressor will stop working eventually.
Frozen Coils
The coils might experience a frost build-up due to low refrigerant level. This will affect the overall working of your AC compressor.
Defective Control Board and Faulty Thermostat
Defective control board and faulty thermostat will prevent your compressor from working properly.
Solution
If the overload is being faulty then get it replaced with a new one. Moreover, call a technician to get the thermostat and other components fixed.
6. AC Fan Won’t Work
In case your AC fan has stopped working, consider the following possibilities.
Bent Blades
Bent blades will struggle hard to provide any kind of air.
Burnt Thermostat
The AC fan won’t work if the thermostat or motor has been burnt.
Faulty Fan Motor
Obviously, if the fan motor has become faulty then the fan itself won’t work.
Solution
Call a technician or an electrician to get all the faulty components fixed or replaced.
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Frequently Asked Questions
Q – Why does my Coleman Mach Air Conditioner keep shutting off?
A – Your Coleman Mach AC might be shutting off due to a poor air flow. Check the air filters along with coils. Both of them should be free of obstructions otherwise a poor air flow can cause your unit to turn ON and OFF frequently.
Q – Where is the relay on the Coleman Mach Air Conditioner?
A – The relays on the Coleman Mach AC are mounted in the electrical box of the ceiling plenum.
Q – Can a Coleman Mach AC be recharged?
A – Camper AC units are closed systems and thus have no refill point for recharge.
The End
To put it briefly, there are six issues that could be preventing your Coleman Mach AC from functioning. I’ve listed those issues for you along with solutions. Take a look at them and master troubleshooting!