Mine has auto climate control. It has a "auto" light and a "check" light. Auto is to run on "electric or gas". Check light is for "gas" only.
If the check light is blinking and your plugged into the outside power poll and you want to run on "electric", turn off the "gas" button on the fridge. You may have to turn the power button on and off to reset the fridge.
If you want to run the fridge on propane, push the button on for gas and check that you have the valves on the propane tanks turned to open position; it may be blinking because there is no gas in the tanks or you don't have the tank valves turned on. Also, depending upon the last time you ran the fridge on gas you may have air in the lines and you will have to purge the system to ignite the gas.
The left button is the on/off. The right button is electric/gas.