Troubleshooting for Split Air Conditioners

One of the most common issues that come up with split air conditioners is that they start to leak. The leaks could be of different types. There could be cases where water leaks out from the unit and there could be other cases where there is a leak in the Freon line.

When the refrigerator coils suck in warm air from the air and cools it. As a result of this cooling, condensed water vapor is formed on the refrigerator coils. When this water vapor is converted to water, it drips on the gutter tray. The gutter tray has an outlet that carries this water and disposes it elsewhere, in most cases, outside.

In some cases, this outlet gets blocked and the water starts accumulating in the gutter tray. This is when the air conditioner starts leaking. This can be resolved rather easily.

The more dangerous case is when there is a leak in the Freon line. As a result of this leak, highly pressurized Freon gas starts leaking into the room. In extreme cases, this can cause an explosion too. There are special leak detection solutions that can help identify this leak.

These solutions are applied to all parts of the Freon line. If there are bubbles forming, then one can identify that there is a leak. The moment a leak is identified, experts should be consulted to take care of this issue before it becomes too big an issue.
air conditioner leaking
There are various ways to fix a hole or leak in the Freon line. However, fixing a hole in the Freon line doesn’t fall under the category of common troubleshooting. For these cases, it is almost mandatory to seek professional help. There are thousands of ac technicians on the yellow pages and one phone call is all that it takes to get someone come over and fix the leak.

HVAC SUPER SEAL CHEMICALFor very small leaks, there are chemicals that are available in the market. For example, there is a chemical called Super Seal HVAC that can be used to fix small holes in the Freon line. However, this chemical will certainly not work for bigger holes.

If the air conditioner is losing too much of charge too frequently, that means the chemical is not working. In another method, smooth graphite and Teflon particles are mixed with the refrigeration oil and injected into the Freon line. These particles get forced into the leaks and stop them. However, this solution is also for small leaks. For larger leaks, experts must be consulted.

Recharge the air conditioning unit

The items that are needed to recharge the air conditioning unit are a pressure gauge and a refrigerant (Freon). At first, any leaks in the Freon line need to be detected and sealed. After the sealing is done, recharging is started. Any air conditioner has two pressure ports – high and low.

Recharging is always done through the low pressure port. So, the first step is to locate it. Usually, the high and low pressure ports are indicated with H and L respectively. Once the low pressure port is discovered, the cap on it should be cleaned thoroughly and then taken out.

The pressure gauge is then attached to the low port and with the air conditioner turned on, the pressure is gauged. The user manual will list the ideal pressure.

After the pressure is gauged and found to be low, the refrigerant is put inside the unit through the low pressure port until the pressure reaches the optimum level. Recharging a split air conditioner is also an issue that is best handled by experts. Before doing anything else, the users should check the yellow pages.

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How to Make Wall Stop Leaking Cold Air ?

Two common locations for air infiltration into the interior of your home are the outlet and switch covers. Cool air inside the wall cavity pushes its way into your room producing an energy-wasting draft. This problem may be alleviated at very little expense by purchasing flexible, fire-retardant, polyethylene gaskets designed to fit behind the outlet & switch covers. When installed, they form a tight seal, blocking the incoming airflow. Buy them at your local home store for just a couple of dollars. Installation is simple, requiring only a screwdriver.

Additionally, an un-insulated wall itself may be sapping precious heat. If you live in an older home with little insulation, consider applying the new NASA-inspired insulating ceramic paint, or ceramic paint additive. These products contain ceramic microspheres, thinner than a human hair. When applied with paint they form a thin film, blocking heat radiation (loss or gain). The ceramic additive may be added to your choice of paint. Applying either, or both, of these solutions will improve your homes’ comfort level.

Why Window Mounted Air Conditioner is Making Noise ?

Many people complain each summer about their air conditioners making noises, and if you are one of these people who don’t know why window mounted air conditioner is making noise then you’re not alone.

The most frequent causes of a noisy window air conditioner are loose parts or faulty installation. But before you call a repair man, both of these problems are easy to fix and you can do it yourself.

If poor or bad installation is the problem it’s because the air conditioner isn’t mounted properly on the window or is sitting directly on the frame. If the air conditioner is sitting directly on the wood frame or without any support or cushion under it, this will result in producing strange rattling noises caused from the vibration of the unit when running.

Taking the unit out then lining the window frame with extra padding or other material such as rubber should eliminate any external rattling noises caused by vibration.

If the rattling noises and problems persist, the entire window may need to be replaced. Contact an experienced contractor like Jayhawk Exteriors Inc. Replacing windows on the home can reduce cooling costs and lead to a longer lifespan of the air conditioning unit.

Internally the fan is usually the culprit that causes noise from an air conditioner, make sure you always unplug the unit before opening it up, then check for any loose parts and reattach or tighten any that you may find.

What are the Effects of Rain on a Window A/C Unit?

The outside of a window A/C unit is designed to withstand the effects of the rain, therefore the A/C unit will function properly and efficiently regardless of the rain. The unit is able to work normally because the parts of the A/C unit that need to stay dry are protected. The manufacturers of the A/C units are aware of how important it is to stay cool in all weather conditions. In fact, it’s important to remember that the unit produces condensation under normal daily use – the rain is merely increased condensation.

How does rain affect the integrity of a window that has a window A/C unit installed?
The only caveat is that the A/C unit needs to be angled slightly down, away from the house. If the A/C unit is angled upwards then it serves as a collecting place to rush water against the window, and often into the house. It’s possible to keep the water out by effective sealants around the window that has the A/C unit installed, but it’s preferable to angle the A/C unit so the water runs away from the house and safely onto the ground below.

How do I get the Cigarette Smoke Smell out of my Window Air Conditioner Unit?

If the air conditioning unit in your home has a smokey smell when you turn it on, there are a few things you can do to freshen the unit. If the A/C has been around cigarette smoke for some time, chances are the smoke has worked it’s way throughout the internal parts. The first step to removing the odor is to clean the unit.

This includes both the inside and the outside. The outside can be cleaned with hot, soapy water and a cloth. Change the water when it becomes soiled. Most home A/C units have a convenient panel so the user can easily access the air filter. The air filter should be cleaned often, about once a month, while it is in use.

For a light cleaning, most manufacturers recommend running the filter under running water until clean, then allowing the filter to air dry before reinstalling. If the filter is very soiled, or in this case filled with cigarette smoke, it can be cleaned with warm, soapy water. Always let the filter dry before using the A/C. The final step is run the A/C in fresh air. After completing these three easy steps your A/C should be de-smoked.

{ 57 comments… read them below or add one }

Anil Mittal August 14, 2011 at 9:46 pm

I have a Azure 2 Ton split A/c indoor unit. for the past 3 days its showing on the display panel ‘E1′. What does this mean? How to remove this error code as finding it difficult to set the temperature, though all other functions such as modes are changing.
kindly suggest a solution.

nipu das August 19, 2011 at 2:53 am

i have a 1 ton onida split ac, when ever i start the ac it will run and cool the room for 20-25 minutes bu after 25 minutes it compressor stop working it blows only air. please give some solution

Prasad Bijai August 22, 2011 at 12:08 am

Dear Sir

Is 1.5 ton window ac equivalent to 1 ton split ac ?

Appreciate your response. Regards.

millie September 14, 2011 at 9:33 am

Water accumulates in GUTTER TRAY in late afternoom and befoe 10PM. cabbot find OUTLET that takes water away. please help

millie September 14, 2011 at 9:50 am

I can see the oioe that takes the water aay but would need a small SNAKE TO CLEAR IT OUT. i PUT BLEACH TABLETS IN IT tUESDAY.

Marvin September 14, 2011 at 6:08 pm

Hi I have a two ton system and it flashing a code it flashes 6 times then off ? Can anyone help

Darrell October 17, 2011 at 2:39 pm

I have a split unit in my mobile home. It started to blow hot air out of the registors. I checked the evaporator coils and their is no considation (water), the pipes is warm. I went outside and the unit outside was running and cool air was coming from the fan. I checked the outside line going to the mobile home and it is cool. what is wrong with the unit? I think it may need freon. Others in the family think it is a leak. I have been without the unit for two weeks and the repair man said it will be at least one more day before they can come and see about it.

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