Question about Delfield 113.28 cu. ft. Commercial Freezer Meridian MFRI3S Stainless Steel

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Freezer not defrosting between cycles

When freeze reaches temp. and conpresser turns off the fns should stay on but are not so the coil freezes weekly. any ideas

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Check the defrost timer for operation if your unit has one. Some Delfield models have solid state controls. If your system has a timer for the defrost you can open the timer cover and turn the dial in the direction indicated by the arrow until a time peg comes up to the time of day marker. You will hear a loud click and the compressor will shut off. Defrost should take place. The inner dial of the timer will have some indication as to how long in minutes the defrost should take. If the pointer does not move while in the defrost position the timer motor is bad. Turn the dial again so the copper pointer goes past the time of day marker and the compressor should restart. Replace the timer.

Posted on Jul 06, 2008

  • James Helmer
    James Helmer Jul 29, 2008

    The fans normally shut off when the door is opened . At times the door will not contact one of the fan light switches to turn on the fans when you close the door(s). With the door open push in on the switch and see if the fans operate.

    For the defrost; when in defrost there are two items that come into play. The defrost heaters and a defrost termination switch. If the defrost termination switch is defective the freezer coil will not defrost and the same if the heater is open.

    You actually have two separate problems from your description.


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