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Question DetailsAsked on 3/3/2018

My refrigerator compartment (Sub-Zero 650, over-under) freezes food at the bottom but barely cools at the top.

Temp is set to 38 but thermometer reads 50. Fans are all runnung. Freezer works fine.

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OK - that is a bottom freezer unit. Here is the manufacturer troubleshooting page for warm reefer section issues FYI:


http://www.subzero-wolf.com/assistanc...


Check freezer temp - should be zero F - if running warm, try adjusting the temp settings, but if this means the unit is running more frequently and/or longer than usual, couldmean you have a refrigerant leak.


Also check the fan which blows air from the cold freezer into the reefer (not sure their dows that, but most reefer units steal cold air from the freezer) is actually blowing the air into the reefer - could be air passageway is blocked by food or wrappings or ice. Also check ice or food wrappings are not blocking the defrost airway/drain out of the freezer unit - though that usually would not cause a warm reefer.


Bad door adjustment or failed door seal, or something blocking the door from closing properly is also a common cause of too warm a reefer.


Probably the most common cause of reefer warm or long-run cycle issues is the circulating fan (in the back or top of unit, OUTSIDE the freezer/reefer compartments) and/or the evaporator coils which that fan blows over are dust clogged, keeping the heat removed from the unit from being removed from the evaporator coil. In that case usually runs longer than usual each cycle, and freezer may or may not be warmer than usual.


Otherwise, try adjusting thermostat settings - sometimes they go bad and "drift" off their proper temps, or sometimes (with electronic control ones - yuck) the board starts going bad and loses its calibration so it starts sensing incorrectly what the temp is.


Otherwise, call their customer service line on webpage above, or Appliance Repair - Large is the Angles List Search the List category to find well-rated and reviewed vendors for this type work.

Answered 8 months ago by LCD




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