CLA Connect Open Forum

Subject: Maytag MFR Bi-metal Error

1.  Maytag MFR Bi-metal Error

Posted 03-01-2017 14:45
Good morning,
I got a Maytag MFRPD 40# washer that is giving me a D17 Bi-metal/Spring error and putting the machine out of order. I took the door lock apart and changed the actual bi-metal (see attached picture) and checked the door lock mechanisms and all looks ok and its still giving me this error. The harness is nice and tight. I even disconnected and looked at the pins and reconnected it. Anyone experience this problem? Also, the error is a Bi-metal/Spring error, whats the spring? I don't see a spring anywhere on the bi-metal nor does it in the parts manual. Thank you all for the help

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F L
Store Owner/ Employee
Felix Lau
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2.  RE: Maytag MFR Bi-metal Error

Posted 03-02-2017 12:16
You replaced the right part, the bi-metal/spring refers to that part.  The handle (part 23002899) can get bent.  When you get that bi-metal error the door can stay locked so customer try to pry open and it bends this part.  Usually have to get a new one.  I have tried to straighten but does not always work.  

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Mark Shields
Store Owner/ Employee
Tucson AZ
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3.  RE: Maytag MFR Bi-metal Error

Posted 03-02-2017 12:42
Ugh!!!  I feel for you.  I have 2 MFR 40's and 3 MFR 30's.  I'm in one of those locks about every 3 months.  When I got the Bi-metal error, I bought 3 new Bi-metal switches.  Didn't correct the problem.  I even gutted the switch because its redundant.  Didn't correct the problem.  After 4 weeks, I finally coughed up the $300 for a whole new door lock.  The worst part about that error is that the machine works fine and only errors out after the cycle is done!!  What's the point????  I'm thinking the problem may be that lower motor that pushes the rod up to the Bi-metal switch being weak or not releasing fast enough.  

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Jeff Roche
Store Owner/ Employee
Rensselaer NY
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4.  RE: Maytag MFR Bi-metal Error

Posted 03-02-2017 14:18
Which online site do you guys order your maytag parts from?

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Ray Benoist
Store Owner/ Employee
Rugmill Laundry
Toms River NJ
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5.  RE: Maytag MFR Bi-metal Error

Posted 03-02-2017 15:09


I read on the manual (soon I have to deal with the whole store full Maytag equipment) I do not know this is going problem for the Bi-metal heating element?

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Phu Tran
Store Owner/ Employee
Garland TX
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6.  RE: Maytag MFR Bi-metal Error

Posted 03-02-2017 15:24
Edited by F L 03-02-2017 15:30
I doubt its a voltage thing. We all are running 240v and not 208v.
So I changed the bi-metal 3 days ago and on the next day, the error came up after the wash is done. But for for the past day and a half, the machine is working without any issues. 
I thought about pony up $300 just to solve this headache but the mechanism is pretty straightforward and I feel a little pissed off paying this amount of money. 
I was looking at a manual somewhere and it said that the bi-metal is wired in parallel with the door lock solenoid coil or the micro-switch with the roller in the middle of the door lock. Can someone confirm or have a wiring diagram? Not sure if anyone changed them out but thats pretty much all the parts in the door lock. 

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F L
Store Owner/ Employee
Felix Lau
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7.  RE: Maytag MFR Bi-metal Error

Posted 03-02-2017 16:27
I try to find out how the circuitry work, to see you can figure out how to fix the problem, I am trying to learn from you in advanced before I get my next store.

When starting the cycle, the controller will wait for 1 and 1/2 minute for the bi-metal heat up, expanse to hold the door lock spring leaf.
Then it will switch off power of the relay 18 for 15 seconds to see the door switch off or on (power will remove from both actuator and bi-meal latch)
If the door switch still ON means the bi-metal latch work ok, the relay 18 will turn on again to hold the lock.
If the door switch OFF, means the bi-metal latch is not work, it will report error D17 at the end of the cycle (that answer why the error code appear at the end cycle).
When I stop by the store I will get in the end of this month, I always saw the note about door switch on order, and the washer version is PC with 3 phase 208V, so it may need universal transformer 208- 240v step up.
Thank you for starting this post, I am learning a lot to deal with my future problem.

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Phu Tran
Store Owner/ Employee
Garland TX
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8.  RE: Maytag MFR Bi-metal Error

Posted 03-02-2017 17:18
Ok, I admit it...I curse these terrible door lock systems nearly every week of the 11 years I have owned them. If you own MFR Maytag's of 35# or larger, you will become extremely familiar with how to mess with them, because you will be messing with them ALL THE TIME. (The 18 and 25# MRF's have very, very little trouble. But these bigger machines, if a customer thinks they want to open that locked door, they yank hard and bend the interior parts and then you have a problem...a recurring problem.)

My lead tech is extremely well versed in them, since, as I mentioned, we have to work on 1-4 of them (12 total) EVERY SINGLE WEEK FOR 11 YEARS.  Message me with your phone # and I'll have him give you a call.

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Paul Pettefer
Store Owner/ Employee
Laundry World
Lake Charles LA
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9.  RE: Maytag MFR Bi-metal Error

Posted 03-03-2017 11:18
Ok, so I had the same error again this morning and took the whole thing apart again. Maybe someone can chime in if any of these points are related to the issue
- When I took the coil out, it says its a 208v. Should it be a 240v?
- There are 2 coils, 1 in the middle going horizontal and 1 on the left going vertical. The one going horizontal had a spring and a clip to hold the spring in place. This is a long shot but anyone try putting that spring and clip on the coil going vertical (You can see I'm getting desperate)? Jeff mentioned that it might be a possibility that the coil is not releasing fast enough and the spring might help.  

I ordered 2 new coils. Don't know if it has anything to do with the problem but I'll swap them out and let you guys know if the problem is still there. 

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F L
Store Owner/ Employee
Felix Lau
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10.  RE: Maytag MFR Bi-metal Error

Posted 03-03-2017 14:26
Edited by Phu Tran 03-03-2017 15:34
Felix you may talk to or email Paul from Laundry World, seem he dealing with same problem for long time, He may help you.

I never work or see the actual door lock on Maytag washer, may be soon.

I read the service manual, then realized the bi-metal latch is 230V and it just back up for door lock safety, in case of the solenoid fail. Both solenoid and bi-metal latch work independent and keep door in locking position in event one fail the door still lock.

By the manual, I think you can check the whole door lock out side the washer, if you can work with live circuit (very careful), apply the 240V to the door solenoid and bi-metal latch, within 1 and 1/2 minute (you may see the bi-metal latch heat up and the arm move downward (I guess), unplug the power to see the solenoid drop down and the bi-metal latch still hold the door switch or whatever associates with it (I do not know).

Hope it help.

*** Just read the spec on the bi-metal latch ETA 683-P10-KF-352017
Typical life 10,000 operations at 1 x IN
So with 5 TPD it will last about 5 years.
Link
https://www.relayspec.com/specs/009413/D_683_e_030305.pdf


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Phu Tran
Store Owner/ Employee
Garland TX
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11.  RE: Maytag MFR Bi-metal Error

Posted 03-17-2017 13:55
Ok, reporting back. Just got the 2 coils yesterday and went to install them this morning. 
Well, it still gave me the bi-metal error after the first test wash. So... its not the bi-metal, not the coils, really nothing else to replace on the door lock. And I don't see how a whole new door lock assembly would fix the problem

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F L
Store Owner/ Employee
Felix Lau
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12.  RE: Maytag MFR Bi-metal Error

Posted 03-17-2017 15:19
The diagram above is circuitry of the door lock system, FA3 is bi-metal latch, CU2 is the solenoid lock the door.
I never see actual door lock yet, but I try to simulate how it work, to see you can troubleshoot the problem by yourself.

1- When the washer start, the Relay #18 send power to the FA3 and the lock solenoid (by Rectify bridge for DC power the coil). The bi-metal latch will heat up as power apply (wire #38), then its arm push down the rod to choke the door lock solenoid rod (in case the solenoid fail to hold, the solenoid rod can not push back to unlock the door, also it can act like delay door lock open after cycle finished.
2- After 1-1/2 minutes the cycle start, the controller will turn of the power of relay #18 for 15 second, then it will detect to see the solenoid rod to hold by the bi-metal latch or it freely to push back (which will make the micro switch link to door lock arm to open state).
3- After 15 second the controller will power the relay #18 again and report the error after the cycle complete, if the bi-metal latch fail to hold the solenoid rod to lock the door.

Now the first thing I will check the power apply to the bi-metal latch, measure power at the wire # 38 and other point as the 2 red cycle show, If you test the power at the controller board, I suggest to check current to make sure no open circuit (measure voltage no guaranty power will reach the bi-metal latch, only current measure can be sure it is not open circuit) to check current, use amp meter connect series with the wire #38 (means remove the wire #38 then connect one lead of the amp meter to the wire #38, other lead to the terminal of the wire #38 connected to)..

Some mechanical misalignment inside the door lock module can cause the bi-metal latch to function incorrectly, in this case, replace new door lock module can correct the error.

Only thing I did not know if the rectify bridge fail to power the door lock solenoid CU2, the washer will start or not, may be not, but if it is, it can prevent the bi-metal latch arm to push down to choke the solenoid rod.

Hope it help.





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Phu Tran
Store Owner/ Employee
Garland TX
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13.  RE: Maytag MFR Bi-metal Error

Posted 03-17-2017 16:21
Phu,
You think there is anyway around this problem? 
The problem lies somewhere in the door lock mechanism since swapping out the door lock fixes the problem. But the unit consist of only 1 bi-metal, 2 solenoids, and 1 microswitch. 
I did order a new door assembly just in case this didn't work. I'm going to put it in tomorrow and hopefully fixes the problem. 

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F L
Store Owner/ Employee
Felix Lau
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14.  RE: Maytag MFR Bi-metal Error

Posted 03-18-2017 12:08
I had this error on a machine we donated to the local humane society.   All I needed to do was readjust the lock as it was too loose and not closing properly. May need to add or remove some shims.

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Duane King
Store Owner/ Employee
LMARIES Laundromat
Bowling Green OH
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15.  RE: Maytag MFR Bi-metal Error

Posted 03-19-2017 00:50
Thanks Duane,
I'm going to give it a shot on Monday and let you guys know. 
BTW, how do you know if it's too loose or tight? 

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F L
Store Owner/ Employee
Felix Lau
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16.  RE: Maytag MFR Bi-metal Error

Posted 03-20-2017 11:59
Loose....  Take off the front panel and watch it as it closes.

You can always swap the lock with another machine to verify it is the lock and not a wiring problem.  PIA I know, but sometimes it needs to be done.

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Duane King
Store Owner/ Employee
LMARIES Laundromat
Bowling Green OH
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17.  RE: Maytag MFR Bi-metal Error

Posted 03-20-2017 15:33
Alright, swapped out the lock since Saturday and its been so far so good. I'll give it another weeks and see if the error comes up again.
If its ok, then I'll remove a shim and swap back the old lock and report back.

BTW, this sounds pretty stupid but I can't figure out how to remove the top front cover completely out of the door. I tried rotating it sideways, up/down, left/right, and the cover opening doesn't seem big enough to slip out of the door. I always get a few chuckles from customers when they watch me try to figure it out but eventually fail

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F L
Store Owner/ Employee
Felix Lau
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18.  RE: Maytag MFR Bi-metal Error

Posted 03-21-2017 11:35
You need to spin the front panel 90 degrees with the hinge up or down and the locking area up or down.  It then should slide over the door and off.

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Duane King
Store Owner/ Employee
LMARIES Laundromat
Bowling Green OH
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