How To Reset AUX Air Conditioner – An Ultimate Guide

Air conditioners are electrical appliances that need to be kept in good working order. The air conditioning unit compressor can stop running from time to time, and that’s when you need to know how to reset an air conditioner because of an Aux error code.

I also was a user of AUX air conditioner but now I have upgraded it. I did not know how to reset my AUX AC due to which I thought that my AC has become out of order. But, when I studied about it, I got through the issue.

When your air conditioner keeps shutting off or doesn’t come on at all, you can reset it by disconnecting the power cord and pushing buttons. This article discusses the steps required to reset an air conditioner and help solve any problems you may be experiencing with your air conditioning unit.

How To Reset AUX Air Conditioner

Check your air conditioner’s filter

Every homeowner should maintain their filter by getting it cleaned and/or replaced regularly. Doing so will help with air quality, the efficiency of your unit, and your energy bills. If you’re ever not sure about the condition of your filter or if you need to replace it, these are some of the signs that indicate it’s time for a change:

1) Your HVAC system runs constantly but still doesn’t seem to be cooling off your home or workplace

2) You notice an increase in moisture on surfaces inside your home or workplace

3) You can see dirt or debris in the flow of air through the vents

Go into your refrigerator and look at the coils

1. Leave it plugged in but not turned on for 48 hours. This will reset the auxiliary circuit breaker and allow your coils to cool off and dry out.

2. If the coils still remain hot, unplug the refrigerator completely for up to 12 hours or until they are cold to the touch. You can also try leaving it unplugged until you have time to take it in for service and cleaning, which will help fix a number of possible issues, including corrosion buildup on the coils that prevent them from cooling properly.

3. If none of these options work and your air conditioner still isn’t working correctly, contact an authorized HVAC repair professional because there may be a more serious issue with your unit or its internal compressor.

Check if there is anything stuck on those coils

Unplug the unit, then use a shop vac to vacuum out any debris from the coils and vents. Plug it back in, wait for it to come on, and see if you have cold air.

If so, your unit is probably operating just fine. If not, check the electrical outlet. Plug something else into it to see if power is still being supplied.

Clean your evaporator Coils

The evaporator coils are located behind the filter on your air conditioning unit. If they need cleaning, first disconnect power to the air conditioner by flipping off the breaker.

Next, flip up the filters and examine the coils to see if they’re dirty and clogged with debris or pet hair. If there is a lot of dust or other grime stuck on them, use a vacuum cleaner attachment to remove it from the coils before you try and wipe them down.

You should also check that all of your vents are clean as clogged vents will just transfer dirt from one part of your house to another and require you to do even more work for no reason whatsoever. If everything looks good after this step, replace the filter and turn on the power again when done.

Call an AC Repair Company 

There are a few different scenarios that can lead to an Aux air conditioner not turning on. It could be as simple as a fuse needing to be replaced, or it could have to do with the thermostat settings.

There are other causes of Aux air conditioning units not running, so be sure you have checked all of the following areas before deciding that you need to call an AC repair company:

1) Check the power source. Is there power coming into your home? Are any outlets/switch plates in your home not working? Any loose or broken wires in your home?

2) Check for tripped breakers. Breakers may trip when too much electricity flows through them, and this can turn off the power leading to your AC system.

You may also be interested in: Fix A Split AC Compressor That’s Not Working But The Fan Is Running

Change your thermostat

Are your AC and heat not working properly? Tired of the HOT or cold air blowing at you at the wrong time? Ready to save a bit on energy costs this summer but can’t afford new units?

It might be time to reset your air conditioner thermostat. If resetting does not work for you, then you should try to change your thermostat, and hopefully, the solution might work for you.

Replace your filters monthly

If you have central air conditioning, make sure it’s working properly with this easy test! Some folks use the flick test where they flick a light switch and if the lights go out in their house it means that their air conditioner has died.

I like this trick, but others don’t like it because there is no backup power for their air conditioners! So, the next best thing to do is turn on the central air, put the thermostat to 80 degrees and walk around your house or apartment.

The place where your skin feels hot (or not cool!) indicates where your central AC can’t get cold enough. If you don’t feel anything different then it’s probably a good bet that your AC is working properly.

How to reset AC circuit breaker

Turn the circuit breaker off for 5 seconds. If it doesn’t reset try this method. Some car battery chargers come with a built-in circuit breaker, which can be used to reset the AC breaker by just connecting it up to the AC outlets on the car battery charger and flipping the switch on. This is not guaranteed to work every time and some have noted that this may cause more issues than before.

How to reset air conditioner thermostat

Auxiliary air conditioners have a thermostat that lets the compressor run only when needed. If the auxiliary AC will not cool enough, it’s possible that the thermostat might be stuck in one position or broken.

The auxiliary AC thermostat is located on the front side of a furnace, near its base. When turned 180 degrees, it closes the door to a resistor pack and allows for heating cycles.


How do I reset my auxiliary air conditioner?

First, locate the auxiliary AC’s main power switch. It is usually located near the AC’s main power switch or breaker panel. If you can’t find it, please contact an HVAC professional and he/she will be able to reset it for you. Make sure that the auxiliary AC has been plugged in before following these steps.

Turn off the AC’s main power switch. Wait a few minutes and then turn on the main power switch again. Wait for at least ten minutes before checking to see if the problem has been fixed or not. If there are any new issues with your air conditioning unit, please contact an HVAC professional for help ASAP!

What does F1 mean on an Aux air conditioner?

An Aux air conditioner is any home cooling system that does not have a dedicated outside condenser unit for the heat to be taken away. Auxiliary means of assistance or secondary in rank or importance and is pronounced as aks.

The difference between a Residential Split Air Conditioning (RSAC) and an Auxiliary Split Air Conditioning (ASAC) is that with an RSAC, the outdoor condenser cools the indoor coil while the aux cooler removes heat from the outside coils. With an ASAC, it’s reversed: the inside coil cools while the outside coil removes heat.

Also go through: Fix A Split AC Compressor That Won’t Turn On


If your current aux air conditioner isn’t cutting it, now might be the time to think about replacing it. Start by having a professional come to your home and assess what type of AC unit will work best for you and your home’s needs. Then order it online, or give Home Depot a call and have them order it for you, before installation.

Once the new unit is installed, remember to follow these steps before turning on the AC. Clean up any lint or dirt from the floor that could restrict airflow. Make sure all ceiling vents are clear of obstructions.

After that turn off the water inlet valve under the sink if applicable; add inhibitor tab(s) to the fresh cooling system according to manufacturer instructions; plug in/turn on electricity if applicable.

Talha Hanjra

Hi! I'm Talha Hanjra. I have a natural affinity for cutting-edge technological devices, and I enjoy finding solutions to their difficulties. I'll tell you how to fix various outdated gadgets and where to buy the best products. My research and experience will be of tremendous use to you.

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