LG WASHER MOD # WT4970CW

[dem1111]

The Washer when you it the start button the lid will lock. It then starts sensing. The motor will try to start it hums stops hums again. Then doesn't do anything. I went into diagnotics the water valve work, the drain works when I put it into agitation it will just hums again. The tub is free with power off. Nothing stuck between the tub. I dropped the motor and the stator and

all O.K. Ohm out the hall sensor and the stator winding. All I can think Could be the computer board. Please tell me what you think. I running out of Ideas? Oh yes it did come up with a error code LE which means motor problem. Please get back to me.

 

[MrApplianceMatt]

There is a test in the manual to diagnose the rotor position sensor but it escapes me at the moment. It involves reading voltage between the sensor pins at the harness connector and spinning the basket to look for DC voltage in both directions. It's a common failure and the most likely cause for the LE error.

[MrApplianceMatt]

Ohms can lie. Bad ohms=BAD. Good ohms=double check. This voltage check is the procedure in the LG service manual.