Walk In Freezer Defrost Timer Troubleshooting

Although there are several possible causes one common cause involves the defrost system.

Walk in freezer defrost timer troubleshooting.

The ubiquitous walk in cooler or freezer is an essential part of many cafeterias restaurants and convenience stores. A systematic approach to walk in cooler and freezer maintenance is the technician s best guide. It is also a large energy user in these facilities but is rarely considered until problems emerge. It needs to be turned until the fan stops which means your fridge has reset the defrost button.

This is comprised of several components including a defrost timer resistive heater s defrost termination switch fan cycling control and drain line heater. Without a proper seal outside air can enter your freezer and cause problems. While servicing this display cooler for an unrelated problem i noticed the defrost timer installed in a way that will almost certainly cause early compressor failure. If the timer stops during the defrost segment of the cycle frozen food will be in danger of thawing out and refrigerator components will cease to operate.

Step 2 turn the notch located on the face of the defrost timer counterclockwise until it is turned completely. Locate the defrost timer in your frigidaire refrigerator. An electric resistance heater is placed on the outer surface of the evaporator s coils. Defrost timer troubleshooting tips if the timer stops in run cycle the refrigerator fails to automatically defrost frost build up occurs on the evaporator and air flow is restricted.

In order to effectively troubleshoot this problem a technician must understand the design and operation of the defrost systems typically used. Service call on a walk in freezer not working in this video i explain how the electric defrost system works in detail. Assemble the timer back onto the fridge and reinstate the power supply. Because this is a cooler and not a freezer it is set to defrost by simply shutting off the compressor four times per day while still running the evaporator fans.

The presence of warm humid air in your walk in is the most likely reason for ice build up issues. Do not apply more pressure. The timer will be on the back or the bottom of your model. For editing my videos i use adobe prem.

Walk in freezer paragon defrost control. Your walk in door may not be sealing properly because of old or damaged gaskets. One popular method of defrosting walk in freezers is the electric defrost system.