Trane Airconditioner Problems: 7 Common Issues (Must Read)

Air conditioners might stop working effectively for a variety of reasons.

As a homeowner, you may want to learn how to repair a broken air conditioner before deciding whether to replace it or dispose of it.

You’d be amazed how easily some problems can be resolved.


Below are some common problems with Trane Air Conditioners, read on

Trane Air Conditioner Not Cooling

If your Trane Air Conditioner is not cooling, it’s likely to be a clogged air filter or defective thermostat.

Here is a list of possible reasons:

  • Clogged air filter
  • Dirty condenser coils
  • Defective compressor
  • Defective thermostat
  • Malfunctioning control board
  • The run capacitor has burnt out

Possible Solutions:

  • Clean the air filter
  • Clean the dirty condenser coils
  • Replace the compressor and thermostat
  • Replace the main control board

Trane Air Conditioner Not Turning On

Pressing the remote control and the Trane Air conditioner not turning on. Frustrating on a hot humid day!!

If your Trane air conditioner is not turning on it’s likely to be a tripped circuit breaker.

Before you call a technician check if there is a blown fuse or a tripped breaker, If the fuse is found to be burnt out, replace the burned-out fuse and reset the circuit breaker to fix the error.

You should also check return grills for any obstructions that could cause the system’s airflow to be restricted.

If it still does not work, then call a technician

Trane Air Conditioner Remote Control Not working

If your Trane air conditioner’s remote is not working its likely to be an issue with the batteries, here is a list of possible reasons:

  • Problem with the control remote
  • Malfunctioning control board

Possible solutions:

  • Replace the batteries in the remote or buy a new remote if it’s not working
  • Get the main control board replace

An infrared receiver on the main control board receives signals from the remote.

The remote control will not be able to communicate with the control board if the infrared receiver is not working.

Replace the main control board if you believe it is faulty.

Trane Air Conditioner Fan Is Not Working

If your Trane Air Conditioner’s fan is not working its likely to be a faulty motor or relay board, is a list of causes

  • The motor shaft has become loose, causing the fan motor to stop working properly
  • Defective relay board
  • A faulty main control board
  • A problem with the temperature control thermostat
  • Worn-out blower motor
  • Burnt out the capacitor

Possible Solutions:

  • Replace the blower motor
  • Replace the burnt-out capacitor after checking continuity with a multimeter
  • Wiggle the motor shaft to check if it’s loose or stuck in one place. Replace the component if true
  • Replace the relay board
  • Replace the main control board
  • Replace the temperature control thermostat

Trane Air Conditioner Blowing Hot Air

If your Trane Air Conditioner is blowing hot air, it’s likely to be a faulty thermostat or dirty filter.

Here is a list of possible reasons:


If your Trane air conditioner is blowing hot air, the thermostat may have been set to “heat” by mistake. If this is the case, it’s a simple remedy that you can do on your own.

Simply turn the thermostat to “cool” and observe if the air conditioner starts to blow cool air once more.

Check the thermostat and make sure it is set to “cool” and at the proper temperature. If it needs new batteries, replace them.

Check the thermostat and make sure it is set to “cool” and at the proper temperature. If it needs new batteries, replace them.

Dirty Filter

A dirty air filter can lead to a dirty evaporator coil, even though air filters have nothing to do with air temperature.

There may not be enough free airflow to allow for efficient cooling operation if the evaporator coil becomes blocked with dust and debris.

Debris build-up from a filthy air filter can cause frozen evaporator coils.

Although you may believe that “frozen” equals “cold,” the frozen coils actually obstruct the flow of cool air, causing warm air to flow from the running engine instead.

Depending on the environment, filter type, and home, air filter change should be done every 30-60 days by the owner.

Setting a monthly reminder to check the condition of your air filter is recommended.

Trane Air Conditioner Making Hissing Noises

Act fast if your Trane air conditioner is spewing heated air, making hissing or gurgling noises, or has ice on the refrigerant line.

This is typically caused by low refrigerant, which is one of the most common causes of an air conditioner that isn’t working properly.

You could have undercharged or overcharged refrigerant if you have a worn service valve, loose joints, or faulty assembly.

You should never try to address refrigerant problems yourself unless you are a skilled technician.

Schedule annual air conditioning tune-ups before the cooling season begins to avoid refrigerant leaks in the first place.

The sooner you react to the refrigerant that has been undercharged or overcharged, the better.

Trane AC produces an unpleasant smell

Rarely this happens, but Trane AC producing an unpleasant smell is typically caused by mold or refrigerant leak. 

A refrigerant leak is likely if your mini-split smells like fish, or vinegar or has a sweet odor. A lack of chilled air is another tell-tale sign that you don’t have enough refrigerant.

If you’re dealing with this issue, it’s best to use some of the solutions mentioned below as soon as possible.

Possible solution(s):

  • If your AC has been spreading an unpleasant smell, it could be due to the presence of mold. After all, the humid internal environment of an AC is the perfect place for mold to grow. You will need to contact a professional to get rid of the mold for you.
  • If mold isn’t a problem and your AC is still spreading a bad smell, your LG AC might have an issue with its components. Overheated parts can easily spread a burning smell. Additionally, a gas leak can produce the smell of rotten eggs. To fix faulty components, call in a professional.

How Long Do Trane Airconditioners Last?

Trane Airconditioners is a well-known and well-engineered brand in the airconditioning industry that offers innovation and dependability, ensuring the expected lifespan for the unit is 15-20 years.

If you’re looking for a reliable and trouble-free air conditioner, Trane is a great option.

Are Trane Airconditioners Any Good?

Trane air conditioners are very good. They are consistently rated above average in user satisfaction and dependability because they are made with high-quality parts and workmanship.


Trane air conditioners are a popular choice in many international markets, and customers turn to this brand when they want a low-cost appliance with useful features and long-term dependability.

You are not well qualified to deal with any situation with your Trane air conditioners if you have read this article.

Make sure you pay attention to the instructions and call an expert if the repair process becomes too complicated.

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