![]() When there is no electrical continuity, electrical power and signals are not flowing through the main control board as they should be.Īs a result, the board can’t function correctly. However, a lack of continuity is a telltale sign that the refrigerator control board is bad. Normally, those components should have electrical continuity. Once you remove the main control board, you can use a multimeter to check for electrical continuity in the board’s components. That way, you reduce any risk of injury and prevent electrocution. Remember: before handling the main control board in your fridge, you must disconnect it from the power supply. However, you can also look for symptoms by directly removing and testing the control board with a multimeter. Signs #1-#3 listed above are based on changes in the fridge’s functionality. So, a problematic main control board can also cause problems with these parts, like no ice from the ice maker or no water coming out of the dispenser. These additional features mean that the fridge has additional components, which are also controlled by the main control board. Many refrigerator brands and models now have built-in ice makers and water dispensers. Read: Why Is Fridge Freezing Up At The Back? #3 Ice Maker and Water Dispenser Problems The automatic defrosting cycle does not run long enough, failing to melt all the ice or frost in your refrigerator.Įven though the fridge will continue cooling down normally, these auto defrost issues will later lead to more significant problems.The automatic defrosting cycle does not run when it should, or.However, a faulty control board will affect that automatic defrosting feature in one of two ways: That defrosting cycle is crucial because it prevents cooling problems and ice buildups inside the refrigerator compartment. That will continue for a set period to melt away any ice or frost buildup inside your fridge’s compartments and on the inside panels. ![]() When the automatic defrosting cycle begins, the fridge pauses cooling and turns on the built-in defrost heater. Most modern refrigerators have an automatic defrosting feature that runs one or more times a day every few hours. The second sign of a faulty fridge control board is an excessive buildup of ice and frost inside the appliance, caused by problems with the automatic defrosting feature. Read: Why Is My Fridge Icing Up Even On The Lowest Setting? #2 Automatic Defrosting Issues Some of those problems are more obvious, while others will require you to inspect the control board up close. Read: Refrigerator Air Filter – All You Need To Know What Are The Symptoms Of A Bad Control Board In A Refrigerator?Ī problematic control board can cause many different problems for your refrigerator. Secondly, the control board is also one of the most expensive fridge parts to replace. Firstly, it’s not a serviceable part, so you can’t get it repaired once it’s damaged. Unfortunately, that means the fridge will experience malfunctions and function incorrectly if the control board was to develop any faults.ĭealing with a faulty main control board can be quite frustrating and challenging. Together, these components control the flow of electrical current and signals to the fridge’s other parts, like its compressor, fans, motors, and more.Īs you can see, the main control board is connected to all fridge components and controls each of its functions. It’s a board with plenty of electrical and electronic components like: That’s because it’s a component responsible for controlling all of the appliance’s functions.įrom a technical perspective, the main control board is a type of printed circuit board (PCB). Most people see the main control board as the brain of your refrigerator. Let’s begin by understanding what a refrigerator control board is and what it does.
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