This is a genuine replacement switch. It is a push button style switch that is designed for use in your refrigerator. When the door of your appliance is opened the switch is released, and the light co...
$46.66
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This OEM filter measures 2.5 inches deep, 12.5 inches high, 5 inches wide and roughly 1.5 lbs. It is recommended to replace this filter every six months or 300 gallons, whichever comes first. If you n...
$109.81
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This tray cover, also known as the front drawer cover, fits on the front of the bottom drawer in your refrigerator. It is made of plastic and is white and clear in color. The cover creates a seal in y...
Having trouble keeping your food fresh because your refrigerator is not cooling properly? The LG Refrigerator Compressor Start Relay Thermistor Assembly could be the answer. This sturdy thermistor ass...
$66.11
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Keep your refrigerator running efficiently with this defrost sensor and thermistor assembly. It monitors the evaporator coil temperature to help regulate the defrost cycle, preventing frost buildup an...
$56.75
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Questions And Answers for LRFD21855ST
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Louie
February 14, 2020
Displaying: Er dh. Defrost heater or pcb or fuse.Bottom freezer is operational, but the refrigerator is not cooling.
For model number LRFD21855ST
Hello Louie, Thank you for the question. The DH error code indicated a Defrost issue. We suggest testing the Temperature/Defrost Sensor, PartSelect Number PS3529340 and the Defrost Heater, PartSelect Number PS12368655. They can be tested for resistance and should measure 77KO at -4°F, 60KO at 5°F, and 47.3KO at 14°F. The fuse on the sensor assembly should measure as having continuity and if it does not, then the assembly would need to be replaced. However, the defrost heater 5300JB1100Q should be tested and it should have a resistance reading. If there is not a resistance reading, then the heater has failed and would need to be replaced. We hope this helps.
Video makes it look easy. Kenmore refrigerator does not have "groove" along the right hand side of switch that allows for pushing down on release. Used a thin screwdriver to get under to push while holding switch edge with pliers. Kept slipping. Tape sides to avoid scratching inside of refrigerator.
Turn off power, remove upper and lower drawers (may need to open upper refrigerator doors to remove large freezer bin,) remove drawer supports (upper and lower), remove rear freezer panel (trick is to loosen 4 screws on fan bumpout to get the panel to come free from the freezer side wall), test thermistor with multimeter (should have continuity or near zero resistance across 2 orange fuse wires) before cutting zip ties, cut zip ties holding Thermistor in place, remove old Thermistor, install new Thermistor, install new zip ties, replace rear freezer panel, install upper and lower drawer supports, install drawers, turn on power, should be fixed if error code doesn't return after 6 hours.
Ordered a new tank assembly, but the new part also leaked because it had a hole in it. Ordered another that worked fine. Used a flat head screwdriver to remove the clips covering the screw holes to the tank assembly cover, then a phillips to remove the cover screws and the screws retaining the tank. Did not use the tubing that came with the new tank (removed it by taking out the neck clip then simultaneously pushing back on the neck piece while pulling out the hose). Used this same procedure to remove the old tank at both positions. Installed the new tank, replaced the clips, pressurized/tested the system and put the cover back on. Overall less than a 5 minute job...except for the extra week waiting for a good part.
