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Replaced mode shifter, now no spin, agitate or led light
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Originally Posted by: lhurrle  No, I didn't buy it from you guys. I wish I had. I did not find this forum until I had problems afterwards. Where I purchased it from said that the motor didn't have enough power and I didn't think the motor could affect the resistance reading. I did plug in the old part to the motor today and the motor led came on and began blinking 4 times indicating it was a bad mode shifter. Is there any explanation as to why the "new" mode shifter would cause the light not to work on the motor and the motor appear not to work?
Thanks!
Also, just tested it in field service mode, it would spin fine but agitate incredibly super slow. (This is with the old mode shifter connected to the motor but new mode shifter installed but not connected to motor) Ihurrle, What is the resistance on your original mode shifter ? The only explanantion we have for your symptoms, would be that the new shifter is drawing so much resistance that the circuit can't carry the "load" and the LED won't illuminate. The mode shifter is basically an electro magnet, when energized the magnetic field of the coil lifts the mode shifter cam,and the washer agitates, when de energized the shifter cam drops back down and engages the pulley for the spin cycle. At this point, we know you have a faulty "new" mode shifter. The original may or may not be faulty, so you'll need to recheck the resistance of the original shifter and check for, or suspect a probable mechanical issue inside the assembly(the drive gear/shifter cam is spring loaded). Then we'll need to get into the inverter board/motor assembly.
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The original mode shifter is not registering resistance at all.
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Originally Posted by: lhurrle The original mode shifter is not registering resistance at all. Ok, that explains the 4 blinks on the LED, The inverter is sending the circuit, but there's no return path because of the "open" coil. See if your parts dealer will exchange the mode shifter you purchased from them, and we'll have to go from there.
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OK, new mode shifter does the same thing and has the same resistance reading of 65 ohms even though everything I read says these should read 98 ohms. Do I need to replace motor now?
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Originally Posted by: lhurrle OK, new mode shifter does the same thing and has the same resistance reading of 65 ohms even though everything I read says these should read 98 ohms. Do I need to replace motor now? Lhurrle, At this point, yes, replace the motor.
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Mode shifters that use aluminum wire read around 65 ohms, those with copper read around 95 ohms.
Eric
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Well, does this mean the mode shifter part is inaccurate or a bad lot or something. All the instructions say it should read 98 ohms. When I unplug the mode shifter, the motor works perfectly fine running through all service modes. It spins, and agitates has plenty of power. I guess I don't understand how replacing the motor will solve anything when it seems to work fine disengaged from the mode shifter. Is it possible for you guys to read the resistance onm your new parts and see if you have the ones that are supposed to be 98 ohms. I'm wondering if my source has a bad supply.
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No, it means you have a mode shifter manufactured using aluminum wire for the coil. Some are made with copper wire and some are made with aluminum wire. The copper wire coil reads around 98 ohms and the aluminum coil reads around 65 ohms. Either will work. If you have the mode shifter disconnected, it cannot agitate correctly. It will agitate the agitator and basket at the same time. The mode shifter coil is only engergized during agitate mode. This disengages the armature from the pulley so that only the agitator shaft is turned by the pulley. That is the only function of the mode shifter. There is no transmission or mechanical brake.
Eric
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OK, let me state my question this way:
Why would plugging in my mode shifter cause my motor to stop working and even shut off the led light as if no power was getting to the motor, but when I unplug my mode shifter the motor works fine...led light on, spins in test mode, agitates in test mode (I understand the basket will agitate with it due to the mode shifter not disengaging when unplugged). Since the motor works fine when mode shifter is unplugged, can I assume the motor is fine?
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Apparently, the mode shifter control and monitoring circuitry on the inverter board is faulty and with the mode shifter plugged in, it causes a load that the main DC supply cannot handle and it shuts down. The AC supply to the inverter is converted to a high DC supply for the motor and mode shifter circuitry. I would replace the motor.
Eric
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Replaced mode shifter, now no spin, agitate or led light
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