Walk In Freezer Evaporator Icing Up

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.

Walk in freezer evaporator icing up. Thick ice build up but now i have manually defrosted. This lets large amounts of warm air inside that can contribute to icing problems. 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.

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. Both can be eliminated by finding and correcting the root cause. Once i got the coil defrosted we found that the cause was the food delivery driver lea. 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. 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. Frost or snow ice is caused by warm moist air infiltration. Also check all gauges to be sure temperatures subcooling superheat and pressures are all normal.

I can t however locate these vents i keep reading about. Why does a block ice form on the evaporator coil of portable spot coolers. This was a service call on an iced up walk in freezer evaporator coil. Each evaporator has a defrost cycle to melt frost ice that has built up on the evaporator coils.

Airflow also decreases as the passages narrow due to ice buildup. Ice can also develop near your drain if your drain line becomes clogged. 5 reasons spot cooler coils freeze up and what to do about it. 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.

They keep the air moving where it is needed. Once the coils are clear the freezer. Next check for a clean coil and clear drain line. 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.

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. It forms when water ggy p yp yoes directly from a vapor to a solid by deposition. There are two typical icing conditions in a freezer.