Author Topic: wm3677hw door lock problem  (Read 2962 times)

Offline kaylin_s

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wm3677hw door lock problem
« on: May 07, 2011, 05:47:56 PM »
I have a wm3677hw that has been having issues with the lock. so i replaced the lock mechanism. now the lock never disengages and constantly shows the door lock light on. when i turn the machine on and turn it off i hear it try to engage the lock mechanism 3 time. sometimes while the mechanism is engaging i can pull the door open but if i close it it is still locked. did i get a defective new switch or do i have a main pwb problem. Maybe does some one have a way to check the pin out of the door switch to see if it working properly.

Model WM3677HW

Offline krazytech

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Re: wm3677hw door lock problem
« Reply #1 on: May 07, 2011, 10:59:37 PM »
Is this a three wire door lock?

I would check how the door lock is mounted.. I believe the wires should be in the down position. this washer is very similar to the asko..
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Offline kaylin_s

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Re: wm3677hw door lock problem
« Reply #2 on: May 08, 2011, 09:01:47 AM »
unfortunately this is a 4 wire switch. i have heard a rumor there is some form bi metalic switch that prevents the lock from opening when its to hot.

http://www.repairclinic.com/PartDetail/Door-Switch-Assembly/1268254

Offline JWWebster

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Re: wm3677hw door lock problem
« Reply #3 on: May 08, 2011, 11:47:57 AM »
Some machines use a wax motor to latch the door. The wax is melted inside the mechanism. This expands it and pushes the lock closed. To get the door open after a complete cycle you must wait several minutes before attempting to open the door so that the wax motor can cool back down and retract the latch. The wax motor plays 2 roles. It locks the door and it also verifies to the control that it has done so or else the machine won't operate. Don't know if an LG has that but it does appear on the picture their are 2 wax motor type devices. I could be wrong.
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Offline Repair-man

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Re: wm3677hw door lock problem
« Reply #4 on: May 09, 2011, 12:22:16 PM »
All good tips, but  not appliacable. If the new lock assembly does not release  within 3 minutes of the end of the cycle, one would suspect the  main control.  It sends the unlock signal  as a last operation when it senses the motor RPMs  at zero. It also looks at water levels in the tub, but if you haven't had any other symptoms than this one, suspect the control.
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Offline ian_ian11

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Re: wm3677hw door lock problem
« Reply #5 on: May 09, 2011, 03:12:17 PM »
Prehaps the door itself is the problem. The door strike might not be fully disengaging. Could be a possibility that you have to replace the door strike. Or if you have slammed it shut or along those lines, you could have broken the switch and the door strike is catching onto the broken part of the door lock mech.

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