Walk In Freezer Evaporator Icing Up

Whether you are renting a spot cooler for emergency cooling or have been using one for months to supplement the server room cooling an iced up coil can happen to any air conditioner.

Walk in freezer evaporator icing up.

Why does a block ice form on the evaporator coil of portable spot coolers. When the defrost sensor detects frost beginning to build on the evaporator coils it temporarily causes the coils to heat up which melts away frost or ice. Next check for a clean coil and clear drain line. I ve read about the freezer to fridge vents being possibly blocked by ice build up food debris etc causing air restrictions which may be causing fridge section to be warm.

This lets large amounts of warm air inside that can contribute to icing problems. If the evaporator fans are not running properly or are set to spin in the wrong direction cooling can be drastically affected too much moisture may remain on the cooling coil during operation. Fans play an important role in the proper functioning of a refrigerator and freezer. Moisture from the air freezes onto the evaporator coils the cooling coils in the freezer and forms an insulating barrier to heat transfer.

There are two typical icing conditions in a freezer. Airflow also decreases as the passages narrow due to ice buildup. 5 reasons spot cooler coils freeze up and what to do about it. They keep the air moving where it is needed.

Defy c315 freezer cold but fridge section warm. An undetected ice buildup can lead to a 100 percent increase in walk in cooler operating costs. Ice can also develop near your drain if your drain line becomes clogged. This is normall y due to a walk in.

Once i got the coil defrosted we found that the cause was the food delivery driver lea. This was a service call on an iced up walk in freezer evaporator coil. If the walk in cooler is freezing up the first step is to melt ice off the evaporator and then check that the evaporation fan is running and rotating correctly. Once the coils are clear the freezer.

Both can be eliminated by finding and correcting the root cause. Thick ice build up but now i have manually defrosted. Also check all gauges to be sure temperatures subcooling superheat and pressures are all normal. The buildup of ice on a walk in cooler s evaporator coils ceilings drain pan and other surfaces is one of the most common causes of malfunctions so it s important to set a routine defrost schedule and regularly check the equipment.

Each evaporator has a defrost cycle to melt frost ice that has built up on the evaporator coils. Frost or snow ice is caused by warm moist air infiltration. This is something an experienced technician can diagnose and repair.