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Forum Index => Dryer Repair => Topic started by: 76comet on October 20, 2014, 03:06:22 PM

Title: Samsung dv338aew/xaa dead no power
Post by: 76comet on October 20, 2014, 03:06:22 PM
hello this is my first post I searched for this model and nothing came up.  I have good power at the plug and I checked the thermal fuses. I can not get any lights or noise. checked the power going to the SUB PCB it has 53v DC is that to much? I need a manual if anyone has one. Thank you!
Title: Re: Samsung dv338aew/xaa dead no power
Post by: rockinrobin on October 21, 2014, 05:32:16 PM
Here's the Tech Sheet to help with troubleshooting your issue
http://www.pcrichard.com/images/promos/DV407%20Fast%20track%20R6.pdf


Maybe someone else will have the Service Repair Manual!
Title: Re: Samsung dv338aew/xaa dead no power
Post by: 76comet on October 21, 2014, 06:25:51 PM
Thanks that helps! I just wish they would tell me what the power should be going to the Sub pcb.
Title: Re: Samsung dv338aew/xaa dead no power
Post by: 76comet on October 21, 2014, 06:59:15 PM
I just ordered both boards I'll try the main pcb first and check the power coming out of it, then post my findings on here for everyone else.  if I remember to that is. Boards will be here in a week or two
Title: Re: Samsung dv338aew/xaa dead no power
Post by: rockinrobin on October 21, 2014, 10:13:59 PM
Thanks that helps! I just wish they would tell me what the power should be going to the Sub pcb.
You should be getting 120 AC Voltage on CN1 (Brown & White Wires and/or Brown & Yellow Wires) of Main PCB which sends power to Sub PCB (see page 4 of Tech Sheet): You may need to press the power button to test/verify voltage on either set of wires.
Unplug dryer and verify Ohm's on Thermistor CN2 (Blue & Red Wires) of Main PCB: Must set Multimeter to 20k Ohm's and remove CN2 wire harness from Main PCB to verify ohm's.
Unplug dryer then remove wires from Door Switch to verify continuity/ohm's between COM & NO and COM & NC (if no continuity on either set of terminal pin's then press door switch to check again - see page 5 of Tech Sheet): Must set meter to lowest Ohm setting to test terminal pin's on Door Switch.
Also, see if your getting power to the Door Switch on either COM & NC or COM & NO (power shuts off when door is open on one set of wires).
Look for any burnt marks on both Boards (either near the connector or on the wire harness).
Title: Re: Samsung dv338aew/xaa dead no power
Post by: domain on October 21, 2014, 10:36:28 PM
Not too interject but if you have 240 with correct polarity@hookup it's going to be a pcb issue. No reason to check door switch and thermistor as that should not interrupt powering on ;)
Title: Re: Samsung dv338aew/xaa dead no power
Post by: 76comet on October 21, 2014, 10:43:48 PM
I also would think that I should have at least some kind of lights on even with the door open
Title: Re: Samsung dv338aew/xaa dead no power
Post by: domain on October 21, 2014, 10:53:48 PM
No way you have correct line voltage at hookup and no drum light
Title: Re: Samsung dv338aew/xaa dead no power
Post by: 76comet on October 21, 2014, 10:55:04 PM
I also was looking at other manuals for Samsung dryers and they said I should have 12v  at sub pcb. But that was for another similar model
Title: Re: Samsung dv338aew/xaa dead no power
Post by: domain on October 21, 2014, 10:57:54 PM
Dv337 should be close to yours. L1 black supplies light and main. I wonder if you lost neutral
Title: Re: Samsung dv338aew/xaa dead no power
Post by: 76comet on October 21, 2014, 11:01:50 PM
Just checked I don't see any light inside
Title: Re: Samsung dv338aew/xaa dead no power
Post by: domain on October 21, 2014, 11:03:54 PM
Your post is confusing. Your bulb is blown. You have a pcb issue. Let us know which one. I bet main
Title: Re: Samsung dv338aew/xaa dead no power
Post by: 76comet on October 21, 2014, 11:09:00 PM
I thought you were asking me if I had light in the drum, and I don't. I do have 120v on both black and red wires on the main cord.  And that is with the negative meter probe on the white wire. Is there a better way to test neutral?
Title: Re: Samsung dv338aew/xaa dead no power
Post by: rockinrobin on October 21, 2014, 11:26:40 PM
Service Repair Manual at link below (see Page 6 #1 Won't Start or Run).
The Lamp should read between 80-100 Ohm's (see Page 8 of Service Manual).
http://www.rosehillauction.ca/manuals/Samsung_cloths_dryer_DV448AAPTECH..pdf
Title: Re: Samsung dv338aew/xaa dead no power
Post by: rockinrobin on October 21, 2014, 11:31:45 PM
I thought you were asking me if I had light in the drum, and I don't. I do have 120v on both black and red wires on the main cord.  And that is with the negative meter probe on the white wire. Is there a better way to test neutral?
You should have 220v/240v AC between Black & Red Wires on Power Cord connected to back of dryer.
Red (Hot) & White (Neutral) is 120v AC and Black (Hot) & White (Neutral) is 120v AC.
If not, then unplug dryer and go to your main breaker box (outside of house by your meter) and flip the 30A switch On/Off 3 times then plug in dryer and see if it works.
Title: Re: Samsung dv338aew/xaa dead no power
Post by: 76comet on October 22, 2014, 07:58:55 AM
Yeah that's how I tested it everything is good there
Title: Re: Samsung dv338aew/xaa dead no power
Post by: domain on October 22, 2014, 08:24:44 AM
He has a pcb issue as well as a blown bulb. His first post says no lights. His bulb has been blown for a while
Title: Re: Samsung dv338aew/xaa dead no power
Post by: 76comet on October 22, 2014, 09:44:01 AM
I don't think I have a light at all in the drum. I may be wrong.  I'm at work now
Title: Re: Samsung dv338aew/xaa dead no power
Post by: 76comet on October 22, 2014, 09:45:15 AM
Rockinrobin thank you for the manual your awesome!
Title: Re: Samsung dv338aew/xaa dead no power
Post by: 76comet on October 22, 2014, 12:33:26 PM
Ok Just thought of something while looking at the manual. I have a 3 wire plug for the dryer. Do I need a 4 wire plug? Manual had both listed but just wanted to ask you all if you have had problems with three prong plugs causing pcb failures due to not having the extra ground in the wall?
Title: Re: Samsung dv338aew/xaa dead no power
Post by: rockinrobin on October 22, 2014, 12:45:35 PM
Ok Just thought of something while looking at the manual. I have a 3 wire plug for the dryer. Do I need a 4 wire plug? Manual had both listed but just wanted to ask you all if you have had problems with three prong plugs causing pcb failures due to not having the extra ground in the wall?
If the wall outlet is 4-prong (look at outer edge of outlet) then you need to use a 4-prong Electric Cord.  Available at most Hardware Stores (like Lowe's, Home Depot, etc).
Title: Re: Samsung dv338aew/xaa dead no power
Post by: 76comet on October 22, 2014, 12:55:43 PM
I have 3 prong outlet and 3 prong plug.  I put the plug on the dryer myself. I bought the dryer used and it did not come with a cord. I know my cord is correct for my outlet, but is the cord correct for the dryer? Also what, if any advantage does a 4 prong outlet have over the 3?
Title: Re: Samsung dv338aew/xaa dead no power
Post by: domain on October 22, 2014, 01:28:23 PM
Omg.  :-\
Title: Re: Samsung dv338aew/xaa dead no power
Post by: 76comet on October 22, 2014, 01:45:28 PM
Calm down domain I hear ya. I already have the two pcbs on order ik one or both is bad
Title: Re: Samsung dv338aew/xaa dead no power
Post by: tgoods on October 24, 2014, 10:27:06 PM
A four prong cord has extra safety by separating the neutral from the  ground at the dryer. That is, if it's installed correctly, most of the time they are not. Your dryer doesn't care if it's extra safe or not, just use the cord that matches your outlet.
Title: Re: Samsung dv338aew/xaa dead no power
Post by: 76comet on October 24, 2014, 10:40:00 PM
Thanks tgoods I'm a automotive tech so I am very familiar with DC voltage. But only understand very basic AC. So thanks everyone for putting up with me, I know it isn't always easy dealing with newbies.
Title: Re: Samsung dv338aew/xaa dead no power
Post by: 76comet on November 11, 2014, 12:47:07 PM
FIXED IT! It was the main pcb.  It still sends 53v dc to the Sub but it's working now.  I attached a pic of the old pcb I think that is a burnt spot on the transformer.

[attachment auto deleted after 5 years by admin]
Title: Re: Samsung dv338aew/xaa dead no power
Post by: domain on November 11, 2014, 07:42:40 PM
How about that drum light. Still out huh
Title: Re: Samsung dv338aew/xaa dead no power
Post by: 76comet on November 11, 2014, 08:36:35 PM
No it's working now
Title: Re: Samsung dv338aew/xaa dead no power
Post by: domain on November 13, 2014, 09:44:27 PM
Fair enough O0