(thermostat) is good if it has continuity when cooled below 40 degrees. You should start to hear a "sizzle" sound in a few minutes and defrosting ice drips onto the hot defrost heater. The symptoms were refridge not cooling properly and freezer had uneven temps (cold on bottom, warm on top). To adjust a Frigidaire defrost timer, follow a few simple steps. The defrost termination switch (thermostat) will cycle power to the heater off and on for the duration of the defrost cycle. In Frigidaire refrigerators as well as other manufacturer's models, the defrost timer is the device that regulates the cooling mechanisms and keeps the unit's components from freezing up. Get the Best Deals on Frigidaire 241508001 Refrigerator Defrost Control Board. The heat from the heater will melt the frost and ice on the cooling coil. Remove the back or bottom panel using a Phillips screwdriver to expose the defrost timer. Ice picks are a bad idea. Cold surfaces inside the freezer will cause moisture in the air to condense and form frost on the food items and cooling coils. Water collected in the trough is routed to a condensate pan located in the compressor section where it evaporates back out into the room from whence it came. Remove the back or bottom panel using a Phillips screwdriver to expose the defrost timer. A hairdryer can be used to defrost the ice. If you’re wiring diagram-impaired, then you’re going on a little safari to find the defrost control, be it mechanical timer or control board. stops the heater from thawing the food in the freezer during the defrost cycle. Older refrigerators didn't have a defrosting function, but people also did their laundry on a rock and sometimes kids looked like the milk man… In modern times a functional refrigerator defrost system is pretty important! Hunker may earn compensation through affiliate links in this story. The refrigerator and freezer doors will be opened and closed numerous times as family members store and retrieve food and drink. Shop Today! Frigidaire also manufactures air conditioning units, ranges, microwaves, dryers, dehumidifiers and clothes washers. Temperature sensors can be tested by reading the resistance (ohms) at room temperature. He later became an outplacement consultant, then a retail business consultant. The fresh food section light switch and light bulb must work. Ice acts as an insulator preventing the cooling coil from lowering the temperature in the freezer compartment to the desired setting. Power to the heater is controlled by the control board. The Frigidaire corporation, which was founded in 1916 in the state of Indiana, developed the first-ever self-contained refrigerator. Owen Richason grew up working in his family's small contracting business. Note: This section applies to all GE side-by-side, some GE top freezer models, and some GE bottom freezer models with main control boards. The defrost system prevents the buildup of frost and ice by periodically initiating the defrost cycle. This site uses cookies to improve your experience. The timer will be on the back or the bottom of your model. Do not apply more pressure when the notch stops turning, to avoid breakage. A repair service determined that I needed a new defrost control circuit board - along with the defrost heater and bimetal. The defrost termination switch (thermostat) is mounted to the coil at the top. The defrost thermostat and defrost heater can and SHOULD be checked with the refrigerator unplugged! All you have to do is … As the heater raises the temperature of the defrost termination switch (thermostat) the power will cycle off to the heater. High-end refrigerators with cooling coils in the refrigerator section will have a second defrost heater. Call U-FIX-IT with your model number for the ohm reading for your sensor. Frigidaire has also jumped into the market with an adaptive defrost board. If you have a lot of frost building up on the back wall of your refrigerator's freezer you likely have a problem with your refrigerator's defrost system. at that point the control board should send electricity through the bi-metal defrost thermostat to the defrost heater. Timers and control boards are commonly located in the refrigerator section near the temperature controls behind plastic panels. Repair Services; Frigidaire 241508001 Refrigerator Defrost Control Board . Allow 20 to 30 minutes to pass for the defrost timer to resume working. The water (melted ice) runs down the cooling coils into a trough below the coils. Control boards initiate and terminate the cycle utilizing combinations of time, logic, and temperature sensing. Side Note: I have had mixed luck with the control boards used on these models Part#5303918476 I have very little confidence in the quality of this replacement part. The serviceman defrosted the freezer and everything began working. True! Important Notice: First thing to do is figger out whether your fridge uses the good ol’ mechanical defrost timer or the new-fangled and problematic Adaptive Defrost Control (ADC) board. September 8, 2020 September 8, 2020 by Apartso. The Defrost problem can be confirmed by removing food from the freezer. Power is routed through the defrost termination switch (thermostat) to the heater. Mechanical timers initiate and terminate the cycle based on time. Remove the freezer interior panels that cover the cooling coils. He now writes for various publications, websites and blogs. *Happy Thanksgiving! Learn how to adjust your settings. How to Troubleshoot Frigidaire Refrigerator Problems ... you need to turn the cold control completely off or try unplugging the fridge. Normal operation will continue until the coils are again covered in ice which is usually about three days. Control boards may be mounted on the back of the refrigerator.