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  1. #1
    Join Date
    Mar 2013
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    United States
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    Walk in freezer 404a -12 degree box temp drain line freezing and pan??



    I shut down box to defrost and cleared condensate line and is insulated but keeps freezing what next?



  2. #2
    Join Date
    Aug 2006
    Location
    england
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    Re: Walk in freezer 404a -12 degree box temp drain line freezing and pan??

    Is the drain line heater working and /or drain clear of blockages? If not water will back up into the drain pan. Is the fall correct on the drain line?
    Mostly found in Oxfordshire, UK :)

  3. #3
    Join Date
    Jan 2009
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    UK
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    Re: Walk in freezer 404a -12 degree box temp drain line freezing and pan??

    Is there a trap fitted? If not warm air will freeze inside the pipe!

  4. #4
    Join Date
    Sep 2011
    Location
    USA
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    45
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    Re: Walk in freezer 404a -12 degree box temp drain line freezing and pan??

    Try some self regulating heat tape like you would use on gutters for a house to keep them from freezing.

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