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LG Dishwasher Lights Flashing or Blinking

LDS4821ST

The 4 most common part(s) or condition(s) which cause the symptom Dishwasher lights flashing or blinking are listed below starting with the most likely. Check or test each item and watch any available videos.

Heating Element

RepairClinic Item # 1582252

If lights are flashing on the control panel, the heating element might have burned out. The heating element heats the water up to operating temperature. After a set amount of time if the temperature isn't reached a light on the control panel might start flashing. The heating element can be checked for continuity with an Ohm meter.

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Other Causes and Conditions

Check Fault Codes

If the display lights are flashing and there is an error code in the display window, check the wiring diagram and tech sheet in the dishwasher that will provide information on the fault.

Grid is 1 inch square
Drain Pump - Part # 1461702 Mfg Part # 4681EA2002H

Drain Pump

RepairClinic Item # 1461702

If lights are flashing on the control panel, the drain pump might not be working properly. For two-wire drain pump motors check them for continuity using an Ohm meter. If it's defective You'll need to replace it. Drain pumps are not repairable.

$52.15

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Touchpad and Control Panel

RepairClinic Item # 1396527

If the lights are flashing on the display the entire touchpad and control panel assembly might be defective. If the display works but the dishwasher functions are all out of synch, or some of the buttons don't respond properly the entire touchpad and control panel might need to be replaced.

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