Back to Troubleshooting

Ductless Heating And Cooling System Repair

Learn the basics of ductless air conditioner and heat pump repair with Trane’s guide. For basic system troubleshooting, we provide valuable information.

Many homeowners enjoy the reliability and convenience of ductless air conditioning. Designed to cool individual rooms or a group of rooms, a ductless system can be easily mounted on your wall or ceiling. If you have a ductless system, like any HVAC unit, you may occasionally run into problems that require troubleshooting. Follow our tips below to see if the problem can be fixed by yourself, or whether you should call your local Trane Comfort Specialist .

If the unit is not running

Check your display to see if the unit is displaying a fault code. If so, look at your owner's manual for directions on what to do next. If there is no fault code, check to make sure the unit is set to the proper room temperature setting. If the display is blank, check to see if a fuse or breaker was blown. You may need to have a fuse replaced or turn the circuit breaker back on. It is possible loose wiring in the unit could cause a blow fuse or breaker. In this case, a Trane Comfort Specialist can repair the wiring.

If the unit is running but not cooling the room

If your unit is not cooling the room, start by checking the air filter, then look for ice buildup on the coils. While you can change the filter yourself a Trane Comfort Specialist should complete the following checks and repairs if your unit is not blowing cold air:

• Check the fan and blower wheel to ensure they're turning freely.

Other issues

There are a few other possibilities that may result in the need for ductless air conditioner or heat pump repair. Leaking water from your unit could mean a clogged drain hose. There could also be an issue with the compressor in the outside unit, in which case you should call a Trane Comfort Specialist.

Regular maintenance

It's important to have your unit serviced regularly to ensure it's working efficiently and avoid any potential problems. Consult your owner's manual for guidelines on how often your unit should be serviced, and remember to schedule annual check-ups with your local Trane dealer.

Explore Trane Residential Products

View all products
All Products
Top of Page