Winterize Frigidare residential fridge
What I did to winterize my 2015 DX3 37BHHD is use 25-30psi of compressed air. The issue I wanted to avoid is using antifreeze in anything other than the traps. The issue I ran into with the residential Frigidare was the ice maker. Contacting Frigidare I was advised that there is no manual ice cycle. It is automatic and occurs approximately every 8 hours. So after I blow all of the water out of all of the lines including the fridge door water dispenser, I leave the heat on inside the coach hooked to my external propane tank and put the front and rear thermostats on 45 degrees to limit the amount of propane wasted. I then leave the ice maker programmed on and allow the ice maker to cycle about 3 times over a period of 24 hours. The first time the dumped ice cubes in the tray are full size, the second and third time the ice cubes are smaller and smaller. When I barely get any ice chips in the tray I disconnect the air and turn both zone furnaces off. I then remove the water filter from inside the fridge and store it inside with all of my other seasonal items. Lastly I power the fridge down. When not using the coach, I plug 50A shore power in while it is stored in front of my garage.
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