Your Bosch freezer may not get cold enough due to problems like a defroster system problem, dirty condenser coils and fan failures or leaky gaskets for the doors. While you might see the cooling problem in the freezer, it’s likely that the Bosch refrigerator or freezer may not be cool enough. You will need to correct the issue immediately to prevent food loss. How can you stop your Bosch freezer from freezing by preventing air leaks If your Bosch freezer is too warm to keep the ice cream firmly frozen and you see lots of frost in the freezer compartment, then warm moist air may be leaking into your refrigerator. Repair damaged gaskets on the door by checking all doors for damages. If your gaskets look good however the door is sagging over its hinges, or causing gaps between the door gaskets and the cabinet, adjust the Bosch refrigerator hinges to ensure that the gaskets properly seal the cabinet. If the frost only appears on the wall of the back freezer, the automatic defrost could be malfunctioning.
If it is functioning properly, the defrost system melts the frost off the evaporator coils every eight hours or so, to keep the air paths through the evaporator free of obstructions so that the refrigerator and freezer compartments are properly cooled. Frozen builds up on the back of the freezer wall as well as the evaporator in the event that the defrost system fails to function properly. The frost buildup hinders cooling air flow through the evaporator, which means that the Bosch freezer doesn’t cool well. What can you do to fix other issues that prevent your freezer from getting cold enough It is recommended to check the cooling in the freezer compartment in case the fan ceases to run. If it’s not working correctly you should change the fan. Condenser coils that are dirty can cause cooling problems in the freezer. You should disconnect your Bosch refrigerator to check for dirt and dust buildup. Clean the condenser coils in case they’re filthy. Ensure that you clean the coils each time you do routine Bosch refrigerator maintenance. It is important to determine if the condenser fan turns off when your freezer does not become cold enough. If the condenser fan is not running, the condenser can’t cool refrigerant effectively. If the condenser fan isn’t turning on, you must replace it.
These Repairs may Help You Solve Your Refrigerator Problem
Replacing the Bosch refrigerator’s defrost sensors: The Bosch refrigerator’s defrost sensing device, also known as the bi-metal termination thermostat, is activated whenever the temperature in the refrigerator reaches an optimum temperature. If the sensor for defrost is activated, it turns off power to the heater for defrost. If the defrost detector is triggered it turns off power to the heater. Over time, frost can build up on the fins of the evaporator and cause the fridge and freezer not cool down well. The volt/ohmmeter is a tool to verify continuity of the defrost sensors. If the sensor does not show continuity, then replace it with 0 degrees F. Clean the Bosch refrigerator compressor coils. Dust-covered Bosch refrigerator compressor coils could hinder the refrigerator and freezer from cooling effectively. Clean the condenser coil in accordance with the owner’s guideline. Prior to cleaning the coils, unplug your Bosch refrigerator. For the majority of Bosch refrigerators the coils are located hidden behind the front grill on the bottom. It is possible to remove the condenser tube using a brush.
Replace the Bosch condenser fan in the refrigerator :The fan is located inside the Bosch refrigerator’s machine compartment, close to the compressor. It circulates air across the fan coils of the condenser to cool the hot refrigerant that is coming out of the compressor. The refrigerant is cooled before it moves through the expansion device before moving into the evaporator.
Replace any defective condenser fans. Repair Bosch’s refrigerator defrost unit: The refrigerator of Bosch is able to defrost itself on a regular basis, removing frost from the compressor. This improves heat exchange. The compressor stops, and the heating element for defrost is activated. When the compressor stops the frost melts off the fins of the evaporator. The condensate flows into an evaporator drip pan below the evaporator. It then flows through a drainage tube and into the drain tray that is close to the compartment of the machine. The condensate water will evaporate out of the drain tray prior to the next freeze cycle. If the defrost is not working, you can diagnose the issue and correct it.
Replace the Bosch refrigerator-evaporator fan: The fan is attached to the evaporator. The fan cools the cabinet through moving air over the fins of the evaporator. Replace the fan if it is damaged. Replace the Bosch refrigerator temperature control board The temperature control board, also called the electronic control board-is in the machine compartment close to the compressor behind a panel on the side of the Bosch refrigerator. The temperature control board regulates the compressor, as well other important elements that comprise the Bosch Refrigerator. You can check it by following the directions in the technical sheet. If the board for controlling temperature doesn’t function properly or it ceases to function, replace it. Change the Bosch refrigerator’s temperature control thermostat. The thermostat has a sensor tube which detects the temperature inside the Bosch refrigerator. The thermostat that controls temperature regulates the temperature within the cabinet by turning it on and off the compressor according to the temperature sensed by the sensor tube. If it isn’t able to sense the temperature properly or doesn’t cycle the compressor in a proper manner, it must be replaced. Replace the Bosch refrigerator thermistor. The thermostat gets temperature information from the thermistor, so a damaged thermistor might provide incorrect information.
Replace the Bosch refrigerator freezer defrost motor: The defrost controller is an electronic device that regulates the interval between automatic defrost cycles of the Bosch fridge. The defrost motor drives the control elements and drives the control elements. If the control contacts of the defrost timer advance into the defrost cycle, the compressor stops and the heater turns on for a specified period of time in order to melt the frost off of the fins of the evaporator. This allows for better heat exchange across the evaporator. After the timer expires, the contacts on the thermostat for defrost return to normal cooling of the Bosch refrigerator. If the heater for defrost ceases functioning, you’ll have to replace it. Bad contacts could cause the heater not to activate or to continuously energize. In this case, you must replace the timer for defrost. Adjust the door of the freezer or refrigerator. The hinges on the doors to freezer and refrigerator can be bent or damaged. Doors can slide as time passes. Warm moist air can enter the freezer or refrigerator door, causing excessive frost to form. Replacing or repairing the hinges on refrigerators requires you to adjust the hinges to make them work correctly and keep them in alignment. Repair the Bosch refrigerator door gasket: The door gasket attaches to the freezer or refrigerator door panel and prevents air from entering or escaping the cabinet once the door is closed. The gasket may be damaged and permit humid, warm air to pass through the Bosch door to the refrigerator when it is shut. This can cause excessive frost damage and cooling problems. If the gasket is damaged or torn, you can replace the door seal.
Replace the Bosch refrigerator’s electronic control board: The electronic control board-also known as the main control board, or the power control board (PCB)-controls the compressor and the defrost cycle. It senses that the refrigerator’s compressor needs to be running in order to keep it cool and then sends out voltage to the compressor fans. To monitor temperatures inside the refrigerator or freezer, the electronic control panel receives signals via temperature sensors. The electronic control board then regulates the process of defrost using this information. A diagnostic test can be done by the electronic control board in order to check its functionality. There are a variety of tests you can perform, but the most popular test is called the Forced Defrost test. For instructions on how to run the diagnostic tests, consult the tech sheet. If your electronic control board isn’t functioning correctly, you may need to replace it.
Routine Bosch refrigerator maintenance: Clean the condenser heating coils in accordance with the owner’s manual. Prior to taking care of the coils, disconnect your Bosch refrigerator. Most refrigerators have the coils located behind the grill on the front. The coils can be cleaned with the help of a coil brush. Additional routine maintenance includes replacing the water filter, cleaning the dust from the front grille on the bottom and adjusting the hinges if the doors aren’t sealing properly and emptying the water out of the drain pan.