The 3 Most Common Walk-In Cooler Issues and How to Fix Them

A walk-in cooler provides businesses with the extra cooling space needed for their operation to grow at a reasonably low cost. Whether it’s an indoor or outdoor cooling unit, the insulation panels of the cooler along with the refrigeration system allow for an ideal cooling environment without the worries of fluctuating temperatures. Like any other appliance, a walk-in cooler needs regular cleaning and maintenance to ensure proper operation.  Even then, it is still possible to run into problems. Here are the 3 most common problems customers face with their walk-in coolers, and solutions on how to fix them.




When planning for your walk-in cooler, you should consider where the condenser coil will be located. The area must be well-ventilated and temperature controlled in order to allow the heat to be removed. If the condenser area becomes obstructed, it can insulate the heat and reduce airflow. Confirm that the air flow area is clear of any debris, and clean off any dirt and debris that may be building up on the coil to help keep the compressor running strong.




Your cooling unit has an evaporator coil that helps regulate the temperature inside of the walk-in cooler. Evaporators are equipped with a defrosting mechanism which is designed to help melt off any frost or ice that builds up on the coils, and then the water from the melted frost or ice is drained out of the unit. If the water doesn’t appear to be draining and the ice is not being melted off the coils, it can cause the heat transfer surfaces to increase in temperature and put the equipment of the walk-in cooler at risk of failure. Clean off any dirt and debris that may be building up on the coils, and check for any evaporator coil leaks. If the unit still is not working properly, you should call in a certified technician to investigate and repair the unit.




The exterior walls and ceiling of your walk-in cooler are made of insulation panels. These insulation panels keep the cool air in the unit and help maintain the proper internal temperatures. While there are no moving parts or features of these panels, they still need to be regularly checked and maintained. Inspect for panel damage which could lead to a leak. The age of the panels also plays a role - after about 10 years, standard insulation panels begin to allow moisture and ice to build up inside of them, and this deteriorates the insulating properties of the panels. If you begin to notice these types of buildups early, you can usually replace the panel without causing too much disruption to the cooler.


If you keep up with regular maintenance and cleaning, you should be able to keep your walk-in cooler working with little to no problems.  If problems do occur, hopefully these tips will help you pinpoint the issue. You can try to repair the unit yourself, or if the issue seems too big call in a certified technician to remedy whatever is causing your cooler problems.