Question about Turbo Air 49 cu. ft. / 1388 liter Commercial Freezer MSF-49NM
Do not know if the board is bad or if the defrost sensor is bad.
There is a good chance, if the defrost timer is mechanical, that you can rotate (nudge) the timer to see if it get's going.
Most commercial refrigeration does not use a defrost thermostat, and a lot of it does not use a heater (they use a hot gas bypass valve and pump hot gas through the evaporator, rather than through the condensor.).
Let me know if you need further help.
Posted on Feb 04, 2009
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Posted on Jan 02, 2017
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