Trane Air Handler Troubleshooting Guides

This handy trane air handler troubleshooting guide can help you identify the problem and possibly fix the issue. We will explores the minor hiccups to keep the air flow consistent and comfortable in your home. Take a look at these most common air handler issues and learn what you can do to keep your system in peak condition.

Trane air handler has many electrical and mechanical components. Without preventative maintenance, these components can degrade over time and reduce the unit’s efficiency. If you notice reduced or no air flow throughout your home, you will want to check your air handler unit’s air filter, evaporator coil, and blower motor for potential problems.

Below are three of the most common Trane Air Handler problems you may face with your central air conditioner. Should you run into one of these issues, you could save money and time by trying one of these Trane Air Handler Troubleshooting and repair guides.

Trane Air Handler Troubleshooting

Insufficient Heating Or Cooling

Possible Cause: Dirty or clogged air filters.
Recommended Action: Consult your owner’s guide to find out exactly where the air filters are located in your system. Once you’ve done this you should examine the air filter in each component and replace as needed.

In order for your air handler to function properly, ensure that nothing obstructs the air flowing through your air handler unit. The most common obstruction is a dirty air filter. Cleaning or replacing your air filter regularly will not only improve the overall quality of your home’s air, but also prevent more costly repairs later on. Many new digital programmable thermostats display air filter change reminders making it easier than ever to ensure consistent system maintenance.

Possible Cause: The evaporator coil could be clogged or dirty causing it to freeze and reduce the unit’s cooling capacity.
Recommended Action: Try turning the thermostat off for 1-3 hours to see if it will defrost. Also, check for signs of water leakage below the indoor unit. If there is a leak and you are unable to defrost the coil, contact your local Trane Comfort Specialist™.

Another common issue we encounter is dirty or clogged evaporator coils. This happens when the system runs with no air filter. Without an air filter, components inside the air handler become clogged with dust and debris. This can cause trane air handler evaporator coils to freeze, which reduces the unit’s cooling capacity, and in some cases can force liquid refrigerant to return to the compressor.

The Blower Motor Is Not Functioning

Possible Cause: Sometimes excessive dust can build up and cause the motor to burn out. This is usually because an old filter has not been replaced.
Recommended Action: If you experience a blower motor failure, you will need professional assistance in replacing it.

Failure to use or replace an air filter can also cause the blower motor to quit. Excessive dust in the system makes the motor work harder, creating excess heat. As dust continues to build up, it can eventually cause the motor to burn out and require a replacement.

System Will Not Operate

Possible Cause: The circuit breaker might have been tripped.
Recommended Action: Try resetting your home’s circuit breaker.

And here a few common problems and quick fixes to try if your trane air handler isn’t working properly.

  1. Problem: Musty smell in the air.
    Solution: Clean or change your air filter. There could be mold build up.
  2. Problem: Unusual noise.
    Solution: Could be a simple fix like a loose cabinet or an indication of a motor problem.
  3. Problem: Drop in output.
    Solution: Possible ductwork leak. Have an HVAC expert check for leaks.

Trane Air Handler Maintenance Checklist

Your air handler is responsible for evenly distributing cool and warm air throughout your house. Trane air handlers are tested to last, but with so many moving parts under constant use, the possibility for wear and obstructions can happen from time to time. Here’s what you can expect your dealer to do at your next air handler service appointment.

  • Make sure fan blades are free of dust buildup.
  • Ensure all moving parts are free of cracks and excessive wear.
  • Test fan RPM so it meets design specifications.
  • Tighten Bearing collar set screws on fan shaft.
  • Clear dampers of dirt accumulations.
  • Confirm damper actuators and linkages are operational and aligned.
  • Confirm all mechanical connections and dampers are properly lubricated.
  • Clean the coils.
  • Check for leaks. All coils, refrigerant lines, valves, fittings, etc.
  • Check for rust in condensation pans and drains.
  • Check all belts for signs of wear and cracks.
  • Properly align rigid couplings.
  • Drain and remove any moisture from all cooling coils.
  • Make sure freeze stat is on proper temperature setting and operation.
  • Vacuum the entire unit properly.

Here are a few things you can keep an eye on throughout the year to make sure your air handler is working properly. If you detect a problem, call your HVAC professional.

  • Clean or change the air handler filter at least once a year – more if you have pets or seasonal allergies or asthma.
  • Listen for excessive noise or vibrations.
  • Be aware of odors coming from the air. Musty smells could be mold build up while burning smells may indicate an electrical problem with the motor.

If you’ve tried the above trane air handler troubleshooting tips but are still having AC problems, just contact professional or your local Trane Comfort Specialist™. Professional assistance can diagnose and repair your Air Handler system in no time.

About Mas Broto

Have been in the heating and air conditioning (HVAC) industry for over 20 years. He is person that will grow and thrive to learn more about the HVAC industry throughout his career. Mas Broto is also a blogger, who's dedicated to bringing you the best knowledge to get ahead in the game of life.