Check the power source. If the air conditioner compressor or fan fails to operate, chances are it is not receiving power. Be sure the power cord is plugged in. Weboct 4, 2024 · the ac won't turn on at all. Your rv isn't getting cool enough. The ac is freezing up. Don't panic if you're experiencing any of these issues. We'll cover how to. Set the roof air conditioner to cooling. Click the mode button until the display message for cooling appears: Problem is still there. Ensure the roof air conditioner is set to cooling mode. Click the mode button until the display message for cooling appears: Webaug 10, 2024 · when troubleshooting a dometic rv air conditioner, start by checking the power connections. Make sure the thermostat settings are correct. You can find part & tools used in this video here:
