How to Troubleshoot the Ge Zoneline 3100
Ensure no curtains, blinds or other items are obstructing the front of the Zoneline if it fails to properly cool or heat. Also, check that no items are blocking the rear grille, as this can lead to a compressor overlord. Additional options include adjusting the temperature control to a higher or cooler setting, cleaning the air filter and making certain all your windows are closed.