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HVAC Troubleshooting

Follow our interactive troubleshooting guide to find answers to your system’s problems. Choose from a selection of common HVAC issues or pick your product for help with fixes you can try yourself.

Ductless System Troubleshooting

These are some of the most common issues that your ductless (mini-split) system might encounter, plus what you can do about them. 

Why won’t my ductless system heat or cool properly?

Your ductless heat pump or ductless air conditioner might have a problem heating and cooling because the outdoor coil is blocked. Try clearing away leaves or other debris around the unit. Your filters may also be dirty or clogged and need replacing or cleaning to get your mini-split HVAC back up and running. Regular ductless system maintenance, like changing the filters, can help prevent multiple issues.

Why isn’t my ductless system blowing hot or cool air?

This issue might be caused by the blower door being open. Try to close the door securely to restore power to the blower and gas valve. Also, your main gas line might be shut off and need to be turned on. If closing your blower door doesn’t work, contact your gas company to take further action.

Is your HVAC system still experiencing issues?

Your local Trane dealer can help.

Maintenance Tips

A healthy HVAC system can last longer and save money. Maintain your system with these tips.

Get tips

Owner’s Manual

Learn more about your product, like its technical specs and innovative technology.

Find your manual

Warranty & Registration

After getting a new system, be sure to protect it with a warranty.

Protect your system

Contact a local dealer

Dealers can answer questions, help you find the right products for your home, and repair your system.

We’re here to help

Connect with our Customer Care team about your products, warranties, and dealer concerns.

Available Monday – Friday from 8am to 6pm CST

1-800-945-5884

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