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Master-Bilt Freezer doesnt cool enough

I have a Master-Bilt walk-in freezer. The temperature is supposed to be at -10 degrees. The freezer will start but shuts off at 0 degrees and will not cool down enough. The compressor runs hot. Please help.

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Anonymous

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If the temperature drops to zero and no more (water freezing point) - could be that there is moisture in the system and this freezes at zero degrees blocking the expansion valve (valve where the pipes join at the inside coil). If this is the case you will need to get a refrigeration technician to open up and help you.

Dale

Posted on Dec 07, 2007

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The only thing I could suggest is looking at the evaporator (inside coil / cold bit) and making sure it is not frozen over reducing the airflow through the coil. If it is then put it onto a couple of defrost cycles to clear the ice build up. Not sure exactly of this type but would assume you also have a sight glass on the external unit, you can check this to see if when running the sight glass is clear (fully charged). Another check is looking at the compressor and the larger of the two lines (suction) should be cold back to the compressor (this line is normally insulated). However I would suggest your best course of action is a good refrig. techy. Hope this helps.

Posted on Sep 04, 2007

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