Appliance Repair Blog

Thoughts and commentary about appliance repair topics including common failures and repairs, plus links to frequently used parts, industry news, along with information to help you better understand your appliances. Resources available for the technical professional and the do-it-yourselfer.

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Model #ATF6700FS0icon, this front load washer would wash properly, but the clothes seemed to be very wet at the end of the cycle. The customer tried different things thinking the problem had to do with the size or type of load, but nothing seemed to work. Then the customer happened to catch the washer at the end of a wash cycle and noticed it never really came up and spun the clothes like it normally would. The high RPM spin of the front load washer is one of those nice benefits of owning one, so the customer thought it was time to get it fixed.

Because of the high spin speeds of front load washers, the doors are equipped with a latch and lock mechanism to prevent the door from being opened during the washers operation. These locks will often be actuated by a solenoid or wax motor to ensure they remain latched during the wash cycle. This model uses a two stage lock that latches the door when the load starts, and then when it is time to spin, the second lock engages to ensure the door is properly secured prior to beginning the spin. When this second lock engages, it also closes a set of switch contacts (the auxiliary door switch) telling the control board the door is closed and locked. If for some reason this switch is not closed, the washer will tumble during what would normally be the spin cycle until the entire cycle is complete.

On the entire Frigidaire GLTFxxxxxxx, ATFxxxxxxx, and Kenmore models starting with 417.xxxxxx, line of front load washers, if the secondary door lock fails, the unit will not spin. If you suspect this is the reason your washer is not spinning, do a check of the error log (consult the tech sheet for how to access) and you will find an E47 error has been logged. This error indicates the control board thinks the wax motor has failed because the auxiliary switch never closed. The customer will not see this error in the display, but it will be stored in memory. A quick resistance check of the wax motor will tell you if it has failed. Expect 1K to 1.5K of resistance from most of the wax motor heaters.

After finding the E47 error stored in memory, I went after the switch by removing the outer door seal spring so I could pull the switch out the front. A quick resistance check showed the wax motor was open electrically so it was no longer working. Installed a new switch assemblyicon, reattached all the wires along with the door seal. And now the washer will wash and spin.

1 comments:

Eric Zahl said...

Thanks much! You solved my problem! I have a Kenmore 417.44052400. However, in my case the wax motor was ok. It measured 1.6kohms. The problem was that that contacts actuated by the wax motor needed an adjustment to make contact.

I opened the door switch box (plastic snap tabs) and found that one of the contacts actuated by the wax motor needed to be "adjusted". I determined this by connecting the wax motor leads to 120VAC directly and watching the wax motor operate (to connect 120VAC I used old plug, wrapped bare stripped leads carefully around wax motor leads, then wrapped with electrical tape for better wire contact pressure and safety). I held down door latch solenoid to give wax motor actuator clearance and after 60 seconds or so the wax motor plunger started moving. When it was fully extended the contacts it actuates weren't quite touching. I bend the farthest contact spring lead a little so it would contact sooner. I had to adjust a couple of times to make sure that when the wax motor was cooled that contacts would open as well.

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