Problems related to the defrost system condenser tubes that are dirty, fan failures or gasket leaks could result in the Cafe freezer to not be sufficiently cold. It’s possible that you don’t notice the issue immediately, but your refrigerator and freezer are likely to become too hot.
You’ll want to fix the issue quickly to prevent food loss. How to prevent air from leaking into your Cafe freezer. If your Cafe freezer is too hot to keep the ice cream frozen, and you can see a lot of frost in the freezer compartment, then warm moist air may be leaking into the refrigerator. Check all door gaskets to ensure they are not damaged and replace any damaged door gaskets. If you find that gaskets that are in good condition are not seal properly around door openings due to gaps between them and the cabinet that surrounds them, you can adjust your Cafe refrigerator’s hinges. If you notice frost accumulation just on the rear of the freezer wall, then the automatic defrost system may be malfunctioning. If the system is functioning properly, it melts frost off evaporator coils about every eight hours.
This keeps the air passages through the the evaporator clear, ensuring the freezer and refrigerator compartments are properly cool. When the automatic freeze system fails, the frost may build up on the evaporator’s as well as the back freezer compartment’s walls. The Cafe freezer can’t cool effectively due to the frost buildup on the evaporator. How to fix other problems that stop your freezer from becoming enough cold If you find that the evaporator fan isn’t working when you look for cooling inside the freezer compartment. If it’s not functioning, replace the evaporator fan. If the condenser coils are not clean, it can cause cooling problems.
The Cafe refrigerator should be unplugged. If they are dirty Clean the condenser tubes. Keep cleaning the coils during regular maintenance of your Cafe refrigerator. When the freezer does not get cold enough, make sure the condenser fan runs. If the condenser fan is not running, the condenser can’t cool refrigerant effectively. If the condenser fan isn’t working, it must be replaced. It is possible to solve your refrigerator problem through repairs.
Replace the Cafe refrigerator freezer sensor. The Cafe refrigerator freezer sensor (also called the defrost bimetal termination thermostat) is activated when it senses that temperature is rising enough to overheat. The thermostat that controls defrost shuts off power to the heater when the sensor trips. If the sensor for defrost trips because it’s not working correctly, frost builds up on the fins of the evaporator, eventually making the freezer and refrigerator not cool properly. The volt/ohmmeter is a tool to verify continuity of the defrost sensors. If it does not show continuity at 0 degrees F, replace the defrost sensor. Clean the Cafe refrigerator condenser tubes. Dusty Cafe fridge coils can cause problems in the cooling system of your refrigerator and efficiency.
Clean the condenser coil according to your owner’s guideline. Prior to taking care of the coils, disconnect your Cafe refrigerator. Most Cafe refrigerators have coils located behind the grill on the front. You can clean the condenser tubes using brushes. Replace the Cafe condenser fan of the refrigerator. It’s located inside the machine compartment of the Cafe refrigerator, right next to the compressor. It moves air across the condenser coils in order to chill the refrigerant that is hot that is coming out of the compressor. When refrigerant is moved through the expansion device, it is cool. If the condenser fan appears to be defective, replace it.
Repair the Cafe refrigerator’s defrost system. The Cafe refrigerator automatic defrost system periodically melts frost from the evaporator in order to increase heat exchange. The compressor stops and the defrost heating elements are switched on. When defrosting, the frost melts off of the evaporator fins. Condensate drips to an evaporator tray beneath the evaporator. Then it is pumped through a defrost tube to the drain pan next to that of the compressor. The condensate water evaporates from the drain pan prior to the next defrost cycle. If the defrost doesn’t work, fix the problem. Replace the Cafe refrigerator-evaporator fan.
The fan is attached to the evaporator. It circulates air over the evaporator fins and through the cabinet for cooling. Replace the fan in case it is damaged. Replace the Cafe refrigerator’s temperature control board The temperature control board, also known as the electronic control board is in the machine compartment next to the compressor, behind a panel on the back of the Cafe refrigerator. The temperature control board controls compressor and other components of the Cafe refrigerator. You can test it using the diagnostic test procedures provided in the tech sheet for the refrigerator. Replace the temperature control board if it doesn’t function properly or isn’t regulating the components properly.
Replace the Cafe refrigerator’s temperature control thermostat. The thermostat is fitted with a sensor tube which detects the temperature in the Cafe refrigerator. The temperature control thermostat controls the temperature inside the cabinet through turning on and shutting off the compressor according to the temperature detected by the sensor tube. Replace the thermostat for temperature control in the event that it is unable to detect temperature correctly or does not cycle the compressor correctly.
Replace the Cafe fridge thermistor. A faulty thermistor can transmit temperature data to the thermostat. Replace the Cafe refrigerator defrost timer: The defrost timer can be described as an electronic device that controls the intervals between automatic defrost cycles in the Cafe refrigerator. The motor that regulates the defrost timer rotates the control parts. The compressor is shut down when the defrost contacts are within the defrost process. After that the defrost heater will turn off for a set period of period of time to melt the frost off the fins of the evaporator. This allows for a an efficient exchange of heat through the evaporator. The timer for defrost will turn back after the timer expires to allow normal cooling to the Cafe refrigerator. It is necessary to change the timer for defrost if it doesn’t advance when activated.
The timer’s contacts are not working properly. can also cause the defrost heater to either not energize in any way or to constantly be energized. In this case, you must replace the defrost timer. Adjust the refrigerator or freezer door. The hinges of the doors to freezer and refrigerator could be bent or damaged. The doors can sag over time. This can allow warm moist air to enter the refrigerator or freezer door, which creates excessive frost, which could lead to the drain tube freezing. The refrigerator repair involves aligning and fixing the hinges in order to ensure they function properly.
Repair the Cafe refrigerator’s door gasket. This attaches to the freezer or fridge door panel. It prevents air from entering and leaving the cabinet when it is shut. If the door is shut, the gasket may become worn and permit warm, humid, air to get into the fridge. This can lead to cooling issues and excessive frost. If the seal is worn or damaged, replace it.
Replace the Cafe refrigerator electrical control board. When it senses that the compressor must run in order to cool the fridge, it will send voltage to the compressor and fans. The temperature sensors transmit signals to the electronic control board, which is responsible for monitoring the temperature in the refrigerator and freezer. The control board’s electronic circuitry controls the defrost process by using this data. To determine the efficiency of the electronic control board, you can perform a diagnostic test. There are a variety of tests can be performed however the most well-known is the Forced Defrost test. You can find the instructions on how to run diagnostics in the tech manual. If your electronic control board is not working properly, you should replace it.
Routine maintenance for Cafe refrigerators: Dust-covered refrigerator coils can prevent the freezer and refrigerator from running efficiently and cooling properly. To clean condenser coils, refer to the owner’s manual. Prior to cleaning the coils, disconnect the electrical outlet of your Cafe refrigerator. On most refrigerators, the coils are behind the bottom front grill. With a coil brush, clean the condenser coils. Other routine maintenance includes cleaning the water filter, replacing the bottom front grille and adjustment of hinges in the event that doors aren’t sealed tightly.