Does Your PTAC Need a Checkup?

Maximize energy savings, extend the life of your equipment, and prepare for higher temperatures by testing your PTACs before the season changes. Give your PTAC units monthly and yearly checkups to allow yourself time to maintain, test, and order repair parts for equipment.

Before conducting any routine maintenance or service, turn off and unplug PTAC units to avoid the risk of property damage, electrical shock, or personal injury.

Monthly PTAC Maintenance Tips

    1. Air Filter Checkup

  • Remove the PTAC air filter slowly to prevent dirt from falling back into the unit. For some units, the front grille must be removed to access the filter. 
  • Clean the filter with a vacuum or running water. 
  • Replace damaged filters. 


You can easily deep clean the vent screen by sliding the chassis out for easy access.

2. Vent Screen Checkup

  • Remove the front grille.  
  • Remove the screws securing the chassis to the wall sleeve and slide the chassis out far enough to render the vent screen accessible.  
  • Clean or replace the vent screen, slide the chassis back into the wall sleeve, secure it in place, and reinstall the front cabinet.  


Note: If the PTAC unit operates with the vent door closed, the vent screen does not need to be cleaned.

3. Front Grille Checkup

  • Remove the front grille and clean it with a dampened cloth. 
  • Reinstall the front grille. 
  • Inspect the control panel door and plug. Replace parts if needed. 


Yearly PTAC Maintenance Tips

1. Wall Sleeve Checkup

  • Check the caulking around the PTAC wall sleeve to ensure all air and water openings are properly sealed. 
  • Check the wall sleeve’s level. It should be tilted to the outside (1/4 bubble tilt) from right to left. If the unit has an internal drain system, the sleeve should be leveled so condensate water drains into the connected drain line/kit location. Test this by pouring a cup of water into the wall sleeve. 
  • Check the drain hole locations at the rear and bottom of the sleeve, and remove any blockages. 


2. Base Pan and Condenser Coil Checkups

    Hydro-Balance Enviro-Coil cleaner treats and prevents dirt accumulation.


  • Cover the entire control panel area and fan motor with plastic to prevent damage while cleaning. 
  • Spray the condenser coil and base pan with Hydro-Balance Enviro-Coil cleaner. 
  • Place a drain pan cleaner tablet or a Hydro-Balance drain strip in the base pan to inhibit bacteria growth. 
  • Reinstall the unit into the wall sleeve. 
  • Allow the unit 24 hours to dry before reapplying power. When the unit powers up again, test it for proper operation. 



3. Clearance Check Checkup

  •  Check clearance around the PTAC unit to ensure the intake and discharge air paths are not blocked or restricted. Leave a minimum of eight inches from the unit to furniture, beds, or other objects for proper operation. 


Need repair parts and equipment to maintain your systems? Visit and use the search term “PTAC.”

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