Dumbstruck by the new computer-controlled appliances? Let the Samurai enlighten you…

Click here to check out our structured, online appliance repair training courses for rookies and experienced techs.

FAQs | Repair Videos | Academy | Newsletter | Podcast | Contact

Stay connected with us...

Samurai on Facebook - become a fan today! Sign up for our free newsletter and keep up with all things Appliantology. Subscribe to our YouTube channel for lots of appliance repair tips and help! Follow the Samurai on Twitter and get timely morsels of Appliantological Wisdom! Subscribe to our MST Radio podcast to learn secrets of the trade.
  • Announcements

    • Samurai Appliance Repair Man

      Webinar Recordings Index Page   11/07/2017

      On-demand appliance repair training videos for Professional Appliantologist members Over 30 hours (and growing!) of original, high quality appliance training webinars developed and given by yours truly are at your fingertips, on topics you won't find anywhere else. Fill in those knowledge gaps, strengthen those areas of uncertainty, and boost your skills. Watch on mobile or desktop at your convenience whenever, wherever.  Ultra Short Primer on Basic Electricity, Circuits, Ohm's Law, and Schematic Reading (Length: 1:04:48) Basic Refrigerator Troubleshooting (Length: 1:10:45) Schematic Reading Workshop, 10/2015 (Length 1:19:08) Troubleshooting Strategies for Computer-Controlled Appliances (Length: 48:34) Semiconductors and PN Junctions (Length: 1:04:37) Appliance Temperature Sensing Devices & Technology (Length: 1:27:33) Voltage Measurements, Meters, Ghost Voltages, and Triac-controlled Neutrals (Length: 1:29:32) Troubleshooting with Tech Sheets, Part 1, 4/2016 (Length: 1:09:26) Troubleshooting with Tech Sheets, Part 2, 4/2016 (Length: 1:21:11) Tech Sheet Review, 4/9/2016: Bosch Speed Cooker, Amana Refrigerator, GE Glass Cooktop Range (Length: 1:22:58) Pulse Width Modulated (PWM) Switches used in Samsung Switched Mode Power Supplies (SMPS) (Length: 27:07) PWM Computer Cooling Fan in a Whirlpool Refrigerator (Length: 14:53) Understanding AC Split-phase Household Power Supplies (Length: 52:41) Troubleshooting a Samsung Electric Dryer without Disassembly using Live Tests and the Schematic (Length: 22:47) Troubleshooting a Bosch Dishwasher No-Heat Problem using the Schematic and Live Tests (Length: 15:38) Linear Motors and Linear Compressors (Length: 55:54) Bi-directional PSC Drive Motor Systems in Whirlpool VM Washers (Length: 56:52) Appliance Service Call Structure and Troubleshooting Strategies (Length: 1:00:16) The Ten Step Troubleshooting Tango and Workshop Exercises (Length: 1:35:39) Troubleshooting Ten-Step Tango Advanced Workshop (Length: 1:32:06) Ten-Step Tango Troubleshooting Workshop: Refrigerators (Length: 1:35:57) Whirlpool Duet Washer Schematic Analysis & Whirlpool Dryer Moisture Sensor System (Length: 1:03:04) Neutral Vs. Ground, Inverter Microwave, Digital Communications, Loading Down in DC loads, and more! (Length: 1:14:45) Gas Oven Service Call After a Parts Changing Monkey (Length: 36:04) AFCI and GFCI Circuit Protection Technology (Length: 41:26) Troubleshooting Samsung Refrigerators and more (Length: 1:29:58) 3-way Valves and Dual Evaporator Refrigerators (Length: 1:15:45) Split-Phase Compressors and PTC Start Devices (Length: 1:11:57) Gas Dryer Ignition Systems (Length: 53:50) Refrigerator Sealed System Thermodynamics, Part 1 (Length: 43:07) Refrigerator Sealed System Thermodynamics, Part 2 (Length: 1:09:09) Refrigerator Sealed System Thermodynamics, Part 3 (Length: 1:11:56) Refrigerator Sealed System Thermodynamics, Part 4 (Length: 37:45) Refrigerator Sealed System Thermodynamics, Part 5 (Length: 16:35) To access these webinars and all the other info-goodies here at Appliantology, become a Professional Appliantologist today. If you need cost-effective, time-flexible, state-of-the-art appliance technical training, check out the Master Samurai Tech Academy.
    • Son of Samurai

      INCREDIBLE DEAL: Introducing the Master Samurai Tech Alumni Program   01/17/2018

      Certified graduates of our Fundamentals course over at Master Samurai Tech can now apply for membership at Appliantology 100% FREE! They'll have all of the benefits available to Professional Appliantologist members at none of the cost. How do you get in on this steal of a deal? Read the post below to find out!  
jgoldeneyes

Samsung RF28HDEDBSR 23E Condensor Fan Error

Recommended Posts

jgoldeneyes

Hello All,

I have a Samsung RF28HDEDBSR refrigerator that I have been working on. I have replaced the C fan motor and I still can't get past this error when I plug the fridge in. I have the service manual and I went through all the troubleshooting steps for this error / problem. I am getting the right voltage to the right pins. I even verified that the fan can spin by giving it 12v from a separate power adapter. I even verified that the 12v gets to where the motor plugs into on the housing. Is there something I'm missing? Any help would be appreciated.

Share this post


Link to post
Share on other sites

Need appliance parts? Call 877-803-7957 now!

16345Ed

Man that's a tough one. 

Do you get 7 to 10 VDC at fan connection with it connected?

or did you disconnect and test the voltage?

Edited by 16345Ed

Share this post


Link to post
Share on other sites
Richard Demint
11 hours ago, jgoldeneyes said:

Hello All,

I have a Samsung RF28HDEDBSR refrigerator that I have been working on. I have replaced the C fan motor and I still can't get past this error when I plug the fridge in. I have the service manual and I went through all the troubleshooting steps for this error / problem. I am getting the right voltage to the right pins. I even verified that the fan can spin by giving it 12v from a separate power adapter. I even verified that the 12v gets to where the motor plugs into on the housing. Is there something I'm missing? Any help would be appreciated.

Did you give it the 7 minute delay? Whats the ambient? Page 86 in manual will give you more info but you could be looking at a main board.Also check your harness connections, both sides. I have had several of these that were having an intermediate ground issue for the fans. In that case I would rewire fan ground at main board to known good ground.

Share this post


Link to post
Share on other sites
jgoldeneyes

I gave it the 7 minute delay. Ambient is about 72 I also put it into FF mode which is like a manual mode to make sure the compressor came on. Forgive the ignorance but what do you mean by harness connections? Also how would I go about rewiring the ground?

Share this post


Link to post
Share on other sites
jgoldeneyes
10 hours ago, 16345Ed said:

Man that's a tough one. 

Do you get 7 to 10 VDC at fan connection with it connected?

or did you disconnect and test the voltage?

I did disconnect the fan to test the voltage. Got 11 VDC

Share this post


Link to post
Share on other sites
Richard Demint
1 hour ago, jgoldeneyes said:

I gave it the 7 minute delay. Ambient is about 72 I also put it into FF mode which is like a manual mode to make sure the compressor came on. Forgive the ignorance but what do you mean by harness connections? Also how would I go about rewiring the ground?

Did you check your pulse voltage like on page 86?

Harness connections sorry should have cleared that up, you can unplug connections in multiple places like at the main board, under hinge covers,ect. 

On the ground problems I was experiencing, Did you check to see if you had ground at fan? if you do, you do not need to worry about this.

I suspect either no ground or no pulse width modulation.you said you had the service manual, on page 86 it will tell you all of this.

Share this post


Link to post
Share on other sites
16345Ed

I'd test for voltage with circuit complete (connector plugged in). See if any difference. 

Share this post


Link to post
Share on other sites
jgoldeneyes

Ok update people. I am not getting 12vdc to the fan with it plugged in. Only getting around 2 -3. Also I checked all the pulse voltages and I am not getting the pulse voltage on pin 9. The fan does have ground btw. So you think I should just replace the main board PCB? Or could the problem lie with one of the other boards?

Share this post


Link to post
Share on other sites
electro_doc

Did you say you were getting 12vlts without the fan hooked up?   I so it would be a bad fan loading down the dc circuit.  You would need to replace the fan.

 

Doc

Share this post


Link to post
Share on other sites
jgoldeneyes
2 hours ago, electro_doc said:

Did you say you were getting 12vlts without the fan hooked up?   I so it would be a bad fan loading down the dc circuit.  You would need to replace the fan.

 

Doc

Already replaced the motor in the fan. I verified the fan can spin while in the fridge by supplying 12v to it from a power adapter. 

Share this post


Link to post
Share on other sites
16345Ed
7 hours ago, jgoldeneyes said:

Already replaced the motor in the fan. I verified the fan can spin while in the fridge by supplying 12v to it from a power adapter. 

You need to unplug other DC loads one at a time from board and test for voltage at the condenser fan. Until you find load that is loading it down. Probably evaporator fan...

Edited by 16345Ed

Share this post


Link to post
Share on other sites
electro_doc

That sounds like good advice ED.  I wouldn't have thought of that although he did say he already replaced the fan, I missed that.  I'm with you. Curious to see what is found. Does sound like the evap fan is a good suspect.

 

Doc

Share this post


Link to post
Share on other sites
Richard Demint
On 7/13/2017 at 10:19 PM, jgoldeneyes said:

Already replaced the motor in the fan. I verified the fan can spin while in the fridge by supplying 12v to it from a power adapter. 

Replaced the motor in the fan? Meaning same housing?

Share this post


Link to post
Share on other sites
Richard Demint
On 7/13/2017 at 7:35 PM, jgoldeneyes said:

Ok update people. I am not getting 12vdc to the fan with it plugged in. Only getting around 2 -3. Also I checked all the pulse voltages and I am not getting the pulse voltage on pin 9. The fan does have ground btw. So you think I should just replace the main board PCB? Or could the problem lie with one of the other boards?

is the voltage between main pcb ground j23 jumper and cn 76 "5" ( sky blue) around dc7-12v? no----- external temp above 66.2degrees?--yes----does dc 7-12v alternate with below dc 2v between main pcb GROUND j23 jumper and cn76 "5" (sky blue)?---no----replace main pcb ground

Not sure what pin 9 you are talking about? What service manual do you have?

Share this post


Link to post
Share on other sites
jgoldeneyes
7 hours ago, Richard Demint said:

is the voltage between main pcb ground j23 jumper and cn 76 "5" ( sky blue) around dc7-12v? no----- external temp above 66.2degrees?--yes----does dc 7-12v alternate with below dc 2v between main pcb GROUND j23 jumper and cn76 "5" (sky blue)?---no----replace main pcb ground

Not sure what pin 9 you are talking about? What service manual do you have?

I'm sure it's the same one you are using https://drive.google.com/file/d/0B5cn84h7OzSjc2xESS15TXZRd1k/view?usp=sharing Underneath where it asks if DC 7-12v alternate with below dc 2v between main pcb ground j23 jumper and cn76 "5" (sky blue) There is a reference box that talks about the pulse signal and it states that cn76 7(F Fan) 8 (R Fan) 9 (C Fan) will generate the pulse signal when the motor rotates. I am not receiving that pulse signal at cn76 "9"

Share this post


Link to post
Share on other sites
jgoldeneyes
On 7/14/2017 at 6:37 AM, 16345Ed said:

You need to unplug other DC loads one at a time from board and test for voltage at the condenser fan. Until you find load that is loading it down. Probably evaporator fan...

I unplugged both evap fans and something is still loading me down. How many other DC loads are there?

Share this post


Link to post
Share on other sites
16345Ed

Where are you unplugging them?

 

do you not have fast track?

Share this post


Link to post
Share on other sites
Richard Demint
2 hours ago, jgoldeneyes said:

I'm sure it's the same one you are using https://drive.google.com/file/d/0B5cn84h7OzSjc2xESS15TXZRd1k/view?usp=sharing Underneath where it asks if DC 7-12v alternate with below dc 2v between main pcb ground j23 jumper and cn76 "5" (sky blue) There is a reference box that talks about the pulse signal and it states that cn76 7(F Fan) 8 (R Fan) 9 (C Fan) will generate the pulse signal when the motor rotates. I am not receiving that pulse signal at cn76 "9"

 I see it, my apologies.

Ok so is that a yes or no with if dc 7-12v alternate with below dc 2v between main pcb ground j23 jumper and cn76 "5" (sky blue)? If no  and I am reading this correct it says to replace main pcb ground.

I would trace the actual wires from fan to board and start testing that way first before I bought the board. i`m not sure how you are testing for ground but using that jumper you might have it there but not at the actual wire. start tracing the c-fan wires down,Test the positive pin at fan and hold your neg. on a known good ground at board and see if you have your 12 volts.

 

Share this post


Link to post
Share on other sites
rbmappltech

I had a similar problem this last Friday,  I found  a 500 ohm resistance between the plus and minus of the fan itself. Determine it was a internal wiring harness problem,  a really werid problem,

Share this post


Link to post
Share on other sites
jgoldeneyes
45 minutes ago, 16345Ed said:

Where are you unplugging them?

 

do you not have fast track?

I unplugged them at the fans themselves. I don't know what fast track is.

Share this post


Link to post
Share on other sites
16345Ed

You have service manual. Pull up schematic and determine your DC Loads. Unplug them from board one at a time and see if condenser fan ever gets full voltage. Could be ice maker... or anything like that. 

Share this post


Link to post
Share on other sites
jgoldeneyes
23 hours ago, 16345Ed said:

You have service manual. Pull up schematic and determine your DC Loads. Unplug them from board one at a time and see if condenser fan ever gets full voltage. Could be ice maker... or anything like that. 

For my particular model I can't unplug individual loads at the board as there are multiple loads per connector. If I pull one connector out I could be pulling 4 or 5 things at the same time so I wouldn't be able to find the culprit. 

Share this post


Link to post
Share on other sites
16345Ed

Right, then narrow down to loads on offending connector. 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now