Coleman Mach CM46MR Thermostat Operation Without Wi-Fi

Updated 09/09/2026 | Published 09/04/2026

Question:

Can the thermostat be set and used if the wifi goes out or is not connected?

asked by: Gary

Helpful Expert Reply:

Hi Gary,

The Coleman Mach thermostat part # CM46MR will still operate your RV’s heating and cooling system manually without a Wi-Fi connection.

You can adjust the temperature and switch between the available modes directly from the thermostat’s physical controls, so you will still have basic climate control if the Wi-Fi goes out. The main thing you lose without a network connection is the smart functionality, such as controlling the system from your smartphone, making remote scheduling adjustments, and receiving local weather information on the display.

Keep in mind that the initial setup for the smart features require connecting the thermostat to Wi-Fi through an app such as Tuya Smart or Smart Life but once it is set up, the basic thermostat functions operate through the RV’s 12V DC system.

Do you like to camp where Wi-fi is not available?

expert reply by: Heather A