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Dave Posted on Jun 03, 2017
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Ok, I am an Hvac tech, but I dont have a lot of exp with refrigeration. I am working on a reach in freezer, husseman mod HF82AT with 404 refrigerant. My question is what should a properly operating freezer give me in regards to pressures. I have a little froist forming on the compressor outlet which is not insulated. The unit runs continuously until defrost kicks it off, shouldn't it cycle when it reaches a certain temp?(there is no thermostat to adjust in this unit).

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Andy

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  • Posted on Jun 03, 2017
Andy
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There HAVE to be a thermostat to cycle unit .Is there a sight glass on the liquid line .If there is normally you charge it up until you see no more bubbles in the sight glass.
There is never a constant pressure reading because pressure depend on outside temperature .
Thermostat for freezer will not look like regular thermostat.
I will be in the evaporator section

5 Related Answers

Anonymous

  • 23 Answers
  • Posted on Jun 29, 2007

SOURCE: freezer works ok.refrigerator temp varies from 39 deg.to 60 deg.

check to see if there is frost in the back of the freezer if so you have a defrost prob..

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Anonymous

  • 184 Answers
  • Posted on Apr 10, 2008

SOURCE: GE side by side refrigerator defrost problem

CHECK THE DEFROST HEATER FOR CONTINUITY. IF IT IS O.K. CHECK THE ELECTRONIC CONTROL FOR A FAULTY SOLDER CONNECTION ON THE DEFROST RELAY. THE ELECTRONIC BOARD SHOULD BE LOCATED ON THE BACK WALL OF THE REFIGERATOR BEHIND AN ACCESS PANEL.

Anonymous

  • 700 Answers
  • Posted on Dec 21, 2008

SOURCE: Refrigerator section not cold enough

may have damaged the valves on the unit when it froze up and check the amperaeg of the compressor and so if its running close to the full load amps.

aborcass

Ron Coons

  • 2651 Answers
  • Posted on Jan 25, 2009

SOURCE: I have a magic chef

OK as long as you used a hair drier, and not a screw driver to defrost this machine, you should be fine, it shoudl take no more then 24-36 hours to regain the correct temp, this being said, not real comfortable with the over the internet diag of a unit that potentially "keeps people alive"

buddymcl777

Bruce McLeod

  • 67 Answers
  • Posted on May 09, 2009

SOURCE: Refrigerator section on side by side losing cooling

Here is the Amana website with the manuals which should show you where the defrost timer etc. is located. Witht your model number and manual it will be a lot easer

http://shared.whirlpoolcorp.com/product_literature/search.jsp?siteCd=AMA

And yes the defrost timer thermostat and heater are the most likely problem.

Do not let this keep running and running or you may lose your compressor too which means a lot more expense than now.

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