Author Topic: Samsung DMR78AHS PE error code  (Read 1662 times)

Offline jaygee

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Samsung DMR78AHS PE error code
« on: February 10, 2014, 10:32:39 PM »
We recently bought this dishwasher at an auction and was told it was working, but it's not!! And of course it was bought "as is-where is".
I installed it, and when turned on, the display on the front shows the wash icon flashing and time left of 2:14, then it starts flashing an error code PE. I printed off the owners manual from Samsung and it says this is a "half load function error" The solution is to insert detergent without loading dishes and run a cycle, if problem persists, disconnect circuit breaker and contact a service center. I tried to look at the service manual on the Google drive here but it wouldn't show me any pages, could some one pm it to me or does anyone have any ideas? After buying this I realized why it was at the auction....these machines appear to be tempermental!
Thank you,
Jaymie
DMR78AHS

Offline AJ

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Re: Samsung DMR78AHS PE error code
« Reply #1 on: February 10, 2014, 10:59:23 PM »
Hmm, google manual works for me.
https://drive.google.com/file/d/0BzIiBNwRIV4NVlZHLTRyTlctcDg/edit?usp=sharing

If that still don't work for you here is another copy.
https://www.evernote.com/shard/s259

Don't have any Samsung dishwasher experiance so maybe another tech can jump in and help here too.

Hope you find our site helpful.

Offline jaygee

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Re: Samsung DMR78AHS PE error code
« Reply #2 on: February 10, 2014, 11:54:46 PM »
Hmm, google manual works for me.
https://drive.google.com/file/d/0BzIiBNwRIV4NVlZHLTRyTlctcDg/edit?usp=sharing

If that still don't work for you here is another copy.
https://www.evernote.com/shard/s259

Don't have any Samsung dishwasher experiance so maybe another tech can jump in and help here too.
Thank you SOOO much for the quick response, the link to the evernote.com manual worked!
Jaymie

Offline jaygee

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Re: Samsung DMR78AHS PE error code
« Reply #3 on: February 19, 2014, 10:02:38 PM »
So I pulled dishwasher out and started troubleshooting the PE error code. The first step was to check the coil in the distributor motor, normal spec is approx. 2.6k ohms. I measured 3.89k ohms, am I safe to assume that is out of spec. I've never seen a spec listed as "approx." I work at a Ford dealer and in our manuals there is always a range listed, never approx.!
Help....
Thanks
Jaymie

Offline niobrara

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Re: Samsung DMR78AHS PE error code
« Reply #4 on: February 22, 2014, 08:14:09 AM »
Samsung fault codes are pretty good if your reading from the control are good your correct on the motor.

Offline jaygee

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Re: Samsung DMR78AHS PE error code
« Reply #5 on: February 22, 2014, 12:57:20 PM »
Thank you for the reply. I just want to make sure I'm on the right path! The FIRST troubleshooting step was to check the motor, then if it was ok to check the PCB. When I power up the dishwasher all the displays look ok, it says there is 2:14 left in the cycle, so I'm assuming the motor packed it in during a cycle thats why the display shows what it does. Does this sound right to you pro's?
I'm a diesel tech not a dishwasher tech! :thanks:

Offline niobrara

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Re: Samsung DMR78AHS PE error code
« Reply #6 on: February 22, 2014, 02:07:03 PM »
Yes ,but make sure to tested the main pba cn1 white to cn14 violet when operating,120 v also check the power relay just to be safe if they check your correct.

Offline AJ

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Re: Samsung DMR78AHS PE error code
« Reply #7 on: March 09, 2014, 12:09:34 PM »
Get it fixed?
Hope you find our site helpful.

Offline jaygee

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Re: Samsung DMR78AHS PE error code
« Reply #8 on: March 09, 2014, 03:17:19 PM »
So.........
I pulled off the distributor motor to check the microswitch and found the plastic cam that attatches to the motor was missing!! WTF? I ordered the motor, cam and the seal from a local parts supplier, installed them and so far so good it has worked fine. I don't know who was in there before and removed the cam and seal, but I bought this at an auction as is!
$200 for dishwasher and $60 in parts, so I think I came out ok.

Thanks for your help,
Jaymie

Offline AJ

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Re: Samsung DMR78AHS PE error code
« Reply #9 on: March 09, 2014, 03:18:35 PM »
You did good, thanks for the update!
Hope you find our site helpful.

 

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