FX: Advanced troubleshooting codes

Any code that starts with F is grouped here as an advanced troubleshooting code, not a single homeowner fix. The sheet does not list a reset procedure for F codes. It says to contact tech support with the exact code on the display and your model number. Write the characters down before they disappear, including the digits after the F. This group is marked pro-only, so do not open panels to chase an F code on your own. Call support first so they can match the exact code to the model. If they send you to service, use a licensed HVAC technician and have the purchase date ready.

What to do

1. 1Contact tech support for assistance, with the exact code shown and your model number.

Sensor, board, fan motor and refrigerant repairs need a licensed HVAC technician. Have your model number and purchase date ready when you call.