Quote:
Originally Posted by WaltBennett
RVs of any kind are real humidity traps. (Just think about taking showers in the 300 or less square feet of floor space.) Our Dometic will frost over after a month of regular use and we've had to defrost it while on long trips. When sitting at home, it won't because we very seldom open the freezer. Since you've a residential unit, see if it's got a defrost cycle and use that while plugged into shore power.
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Its a residential, it has a drawer and it will have a defrost cycle. It more than likely uses an adaptive defrost, meaning the control board will defrost the evap depending on a multitude of circumstances probably once a day. You can manually put it into defrost if you can find the tech sheet it will tell you how. But if the defrost drain is froze a defrost cycle will not open it up. How long has the unit been plugged in? If you do unplug it, and it does have a defrost problem or a defrost drain problem it will take a quite awhile to defrost the drain if it is froze, probably 24 hours. If there is a problem in the defrost cycle or the drain refreezes you will probably see the problem return in a week or 2. It could be a bad board, defrost thermostat, or defrost heater, orrrr maybe the drawer just accidentally got left open a hair and she frosted up.