Zinger ZT25SB, 2011 model.
If you have a similar model, with the refrigerator mounted in the slide out; does your fan (mounted behind the fridge) cycle on and off constantly while the fridge is in a cooling cycle? Mine has done this for 2 years now. I don't see a problem but just wondered if it was normal. If the fridge was not in the slide, the upper vent would be on the roof and natural convection might prevent heat build up but I can see where a fan is needed in the slide mounted fridge. It's the cycling I'm questioning v/s it coming on, running for the duration of the cooling cycle and then turning off. Mine comes on for less than a half minute, shuts off for about the same amount of time, turns on again, etc etc.