Carrier 42QHP09E8S - Troubleshooting Guide; Safety Caution

Troubleshooting
 Page 55 
Heavy load condition
Loosen hold down bolts and / or screws
Bad airproof
The air inlet or outlet of either unit is blocked
Interference from cell phone towers and remote
boosters
Shipping plates remain attached
☆
☆
☆
☆ ☆
☆
☆
Check heat load
Tighten bolts or screws
Close all the windows and doors
Remove the obstacles
Reconnect the power or press ON/OFF button on remote control to restart
Remove them
Others