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Author Topic: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642  (Read 741 times)

Offline Thorning

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Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« on: February 22, 2021, 12:04:18 PM »

I am in the middle of repairing the above model Speed Queen Washer which was given to me as scrap since it had a really bad water leak. The necessary parts primarily a 766P3A kit and a few other items  are in transit to me and I have dismantled it but would like advice from other techs about an easier way to hook and unhook the tub springs especially the rearmost  pieces. I have made a long (about 30 inches long)hooked tool to use and it is useful but it is still a bear to get these springs off and back on. A Vice grip pliers is also useful but it is still a PITA to get these in place.. Also in order to get the tub flange off the splined shaft It had to be broken in pieces after all attempts to remove it using a large gear puller, pry bars , PB blaster penetrating oil, and heat were unsuccessful .Has anyone ever seen this severe of a  problem  before and were you able to get this item off without destroying it ? Keep in mind the unit was used in a commercial situation with a lot of  daily use for 8 years.

Offline Thorning

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #1 on: February 23, 2021, 08:05:01 AM »
A question was raised to me from a local fellow tech about the liquid used by the companies such as Speed Queen in the balance or damper ring on the top of the wash basket in top load washing machines such as the unit I am working on currently.i   Is the liquid inside water or some other fluid and how much ? Can it be replaced if a leak occurs and what  amount ? Can anyone shed some light on this question ?

Offline Thorning

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #2 on: February 24, 2021, 11:33:02 AM »
For the info of other techs who work on these types of machines, the Speed Queen service folks gave me the following detail. The liquid is a water and calcium chloride solution. It is approx 1 pound of water and 1 pound  of calcium Chloride. They mix it in a large tank and put it into the balance ring and then insert a heat sealing plug. I personaLLY never have seen one leak but if it did it would be very difficult to repair it. Not impossible but difficult. FWIW, this  solution has been used for many years as a ballast in farm tractor tires.

Offline Thorning

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #3 on: February 25, 2021, 02:28:43 PM »
This washer was reassembled and connected up to the water supply for testing. No water leaks or unusual noise was detected but the capacitor for the motor failed in  a few minutes. The failure mode was a lot of smoke  coming out of the small relief plug on the face end of the device where the connectors are located. The unit was shut down before it caused further  damage and a replacement part ordered. Has anyone had a failure of a motor capacitor on a washer and what was the root cause ? This unit is 9 years old and was used in a commercial operation with a lot of daily use. The capacitor is p?n 37377.

Offline R600a

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #4 on: February 26, 2021, 11:22:08 AM »
Start capacitors fail from age or from remaining in the circuit for too long. If the centrifugal start switch sticks closed the capacitor will fail rapidly.
If it ain't broke I'll fix it till it is. 🤣

Offline Thorning

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #5 on: February 27, 2021, 04:46:06 PM »
This unit is a real crazy situation. The failed capacitor has been replaced and the motor which is a 2 speed type now will start but will not continue to run except for a short time . I presume the motor thermal protection is activated as it kicks out but after several minutes it tries to start again. Sometimes it will run thru the cycle but usually not.. I put some lube in the brake disc area, Dismantled  everything but cannot find a problem. The motor is marked with the following numbers C68PTGHK-4603 1/2 HP 1725 and 1140 RPM. I am at a loss to figure this problem out and any suggestions would be appreciated

Offline R600a

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #6 on: February 27, 2021, 04:52:04 PM »
It sure sounds like a defective centrifugal switch to me. (The proper name might be motor switch.)
Is that a replaceable part on that one or do you have to replace the whole motor like whirlpool and all the other homeowner brands?
If it ain't broke I'll fix it till it is. 🤣

Offline Thorning

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #7 on: February 27, 2021, 04:56:28 PM »
I have another motor of the same type and had it installed but removed it and put the original back into the machine. I will recheck the switch if possible and see what I can find.

Offline R600a

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #8 on: February 27, 2021, 05:44:50 PM »
Did the other motor do the same thing?
If it ain't broke I'll fix it till it is. 🤣

Offline Thorning

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #9 on: February 28, 2021, 06:09:58 AM »
Yes it also did the same. The centrifugal switch is not replaceable separate as far as I can tell. I will see what I can do with it this AM.

Offline Thorning

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #10 on: February 28, 2021, 09:59:46 AM »
I removed the original motor again and after much difficulty was able to get the 2 speed control switch out of its position on  the motor. It was not working freely and the contacts were badly burned. I used a  nail file board and cleaned the points up but it is very difficult to get at them  I also took the spare motor  2 speed switch apart and it also was slightly bound up and had burned contacts but not as bad as the original motor. I am going to put it back  in the unit and see how it works.  The old original motor still does not start and run properly. Does anyone have an extra   switch in their junk box that fits this motor ?

Offline Thorning

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #11 on: February 28, 2021, 05:03:40 PM »
This washer is causing me indigestion ! I have tried just about everything to get this problem fixed and nothing seems to work. The motor just does not have enough torque to start the rotation in a normal cycle. I took the  motor off and checked both  of them both a newer  and an older one both for any bind of rotation, checked the 2 speed switch for proper operation and cleaned the contact points, dismantled the center shaft bearing setup which used new bearings ,replaced the capacitor, and any other areas I could think of to no avail. The only area I have not investigated is possibly binding of the  brake but the wash basket  does not seem to have much drag when turned by hand. The latest effort resulted in some sparks coming out the side of the motor windings. It did not cause the motor or capacitor to melt or catch fire but I am reluctant to try it again. Anyone have any other ideas to try ?

Offline R600a

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #12 on: February 28, 2021, 08:26:07 PM »
That is really strange. I would want to order a new motor switch and double check that the capacitor is the correct size and still within spec. I am afraid without laying my own hands on it I won't be much help.

Why is it so hard to pass the robot test to post on here. I tried to post earlier but gave up after 6 failed attempts.
If it ain't broke I'll fix it till it is. 🤣

Offline Thorning

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #13 on: March 01, 2021, 12:23:26 PM »
The switch in the motor circuit activated by the centrifugal motor device/switch was dismantled and a very small pivot point made of plastic was found to be broken off. This was repaired using a short piece of nail stock and the plastic lever/assembly put back in place on the motor.. Everything was checked again when the motor was put back into the washer. When the unit was hooked up and activated it tried to start but was unable to start the rotation of the wash basket.  Very slow rotation was noted but the motor kicked off due to the heat limit. I am considering a rewire to possibly run this unit as a single spewed washer if it will run that way. Any other input from other techs is appreciated.

Offline Thorning

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #14 on: March 02, 2021, 01:45:51 PM »
The capacitor was replaced as the one I thought was good was apparently no good or of incorrect value, I put a new oem type and size back in the motor circuit and the washer now works OK. What a struggle !!! I will test this unit with a load of clothes and make sure it will start and run properly before I turn it loose.

Offline R600a

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #15 on: March 02, 2021, 01:49:50 PM »
Nice. I always test capacitors any time there is a problem. Do you have a meter that can measure capacitance?
If it ain't broke I'll fix it till it is. 🤣

Offline Thorning

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #16 on: March 02, 2021, 04:20:01 PM »
As of today I dont have a meter that will measure Capacitors but I intend to get one. My meter is  decent but not as good as a Fluke.

Offline R600a

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #17 on: March 02, 2021, 04:26:20 PM »
The problem with Fluke is you have to have so many meters to do everything.
This is my favorite meter.
https://www.trutechtools.com/SC260
If it ain't broke I'll fix it till it is. 🤣

Offline Thorning

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Re: Speed Queen washer model LWN412SP111TW01 with s/n 1201008642
« Reply #18 on: March 02, 2021, 04:29:08 PM »
Thanks for the info. I will take a look at this brand ASAP.