Airexcel Thermostat removal for upgrade

[Jlawles2]

There is a reason. Slotted holes can loosen and the thermostat can bounce up and come off the wall - don't ask how I know

Safe travels Joseph
Keith

Well if they would not use standard camper screws but the proper size ones the thermostat would lock in place. Note the deformation spring notches on the slotted holes.