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I have a 12 year old sub zero 590 side by side. The freezer is not working well.ice is fine but ice cream is very soft. Meats and others are not so hard either.

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Jai,
If the ice is still frozen after any time the temp is below 32. But thats not cold enough as you know. Target temp in such a freezer is between +10 to 0 F inwhich ice cream is good and firm. BTW many restaurants and food pro's set and judge the freezer temp by the firmness of ice cream! A twelve year old Sub Z should not be having such problems and causes could be numerous. Lets talk about what you can do. This is a built in unit correct? Ok, get your step ladder and remove the cover above the doors and look for a dirty coil, a failed fan, or both. If the coil is dirty enough to restrict air flow or fan not blowing this IS a problem! One that will cause such problems and is my bet to whats going on.

Posted on Oct 14, 2013

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Posted on Jan 02, 2017

fridgetech
  • 473 Answers

SOURCE: New Frigidaire side by side running constantly and still warm

If the frost build up is on the back panel of the freezer then it has a defrost problem which causes a no cool situation. Let me know more about this frost buildup and what you have done.

Posted on Oct 07, 2007

  • 7 Answers

SOURCE: ICE MAKER SUB ZERO REFIGERATOR

Check water turned on. check ice button switch turned on in fridge. remove juice storage, ice container in freezer, check ice bucket full white plastic flapper to make sure not stuck on a white peg at top. flapper must hang down and be freely movable to signal ice maker to keep busy. If up high will turn off ice maker. Lots of other parts especially heater circuits involved also: fill tube supply heater not working then frozen supply line then no ice. Look for wiring diagram in ziplock behind compressor grille. can order parts at repairclinic.com. logical design, layout, easy to get to sensors, heaters. makes sense if look at it long enough.

Posted on Jun 01, 2008

mikedurland
  • 481 Answers

SOURCE: Admiral model #rswa278a

Sounds like a defrost problem. Check to see if there is any frost buildup in the back wall of the freezer. If so, it is not defrosting as it should.

  • possible causes:
  1. bad defrost timer
  2. bad defrost heater (in freezer)
  3. bad thermo switch in freezer
If you don’t know what these are then unplug the machine and let the ice melt in the freezer overnight with the door open. Then try it the next day, if is cooling fine then you need to have a service person replace one of the above items. 

Posted on Aug 08, 2008

  • 56 Answers

SOURCE: Sub-Zero 550 water dripping on right side of freezer forming ice on draw

The drain line has been clogged. There is actually a defrost heater kit for that problem if you can get the obstruction out. Did you call factory at 800-222-7820 or a local factory authorized servicer? The drain is accessed by removing the fan shroud and evaporator cover. There are a number of of phillips head screws that hold this in place. Once you have removed the two cover you will see the drain tube on the left side of the unit. I use a hair dryer to start defrosting the tube. If you have another freezer in the house it is easier just to turn the freeezer section off for a day or so. I use nitrogen to blow the line out from the bottom once everything has defrosted. Test for water flow, then put unit back together. Call the factory at the number above for the heater kit part number and they will also give you the local authorized parts supplier. The locator web address is http://subzero.com/locator/locator.aspx?type=0&zip=Zip%20Code

Posted on Feb 22, 2009

wheelshot
  • 102 Answers

SOURCE: sub zero refrig - ice forming inside

The solution posted previously is TOTALLY WRONG. A Sub Zero ref doesn't have a heating element in the fresh food section. Only in the Frozen food section. It has 2 totally separate systems for each section. 2 Compressors and 2 evaporators. They share a condenser. If you are having ice build up in the refrigerator then the problem you are having is a refrigerant leak in the fresh food evaporator. You need to have a certified tech come out and replace the evaporator in your refrigerator section of your Sub Zero. Not sure what you are asking about the thermostat.

Posted on Apr 11, 2009

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