Emergency treatment: Disconnect the lead wire from 3 poles to 4 poles of the running winding, do not use the 4 poles, connect the tail end of the 3 poles to the original power lead, and the machine can run normally.
LG Washing Machine Repair Guide; The spin-dry tub of the washing machine does not rotate.
Beijing LG Washing Machine Repair Center - Edit materials.
Treatment measures: Replace the spin-dry motor to eliminate the fault.
Analysis and inspection: After disassembling the machine for inspection, it was found that the temperature rise of the motor was very high, but there were no obvious signs of burning. Using a multimeter to measure the resistance values of the running winding and the start winding, the resistance value of pole 1 is 24Ω, the resistance value of pole 2 is 24Ω, the resistance value of pole 3 is 24Ω, and the resistance value of pole 4 is only 1.6Ω. (Beijing LG Washing Machine Repair Phone). Then, measuring the 4 poles of the starting winding are all 40Ω, indicating that there is a short circuit fault in the running winding.
Fault phenomenon: After turning on the machine, the spin-dry tub does not rotate. Carefully observing, there is a slight sparking phenomenon in the motor.