My side by side on the temp door reads 5y CE. I unplug and replug and it is ok for awhile

This issue, and potential explanations/solutions has shown up on prior Fixya before ... if your appliance is a Frigidaire/Iceland (you had not indicated).
The challenge after reading the prior post is that someone had success with just unplugging the unit and waiting for at least a day ... then replugging and the problem went away. Other solution is very costly ... having to replace a circuit board(s).
I tried posting the link ... but for some reason it would not work....so search the Fixya site for the 5Y CE error code and it should pop up
Good luck with your troubleshooting

switch it of and remove the wall plug for ten minutes then replug and see if it has resets

Thank you for your post, Carol!

I understand that your Frigidaire refrigerator is displaying an error code of "5Y CE". However it appears that "5Y CE" is an invalid error code. I have noticed the code of "SY CE" and that means there is a communication error at power up. I would recommend performing a reset on your refrigerator and you can do that by unplugging the power cord for at least ten minutes. If that does not correct your issue it could be possible that there is an issue with your main control board, wiring harness, or user interface board. I would then suggest having a professional technician out to perform a proper diagnosis and repair. This will help you avoid any unnecessary part purchases. Hopefully this is helpful. -Matt

The SY CE error indicates that the user interface (key #2) and the main control board (key #38) are not communicating properly. You can check the wiring. Unplug the refrigerator and gently pry the the dispenser away from the refrigerator. (Use a putty knife and work around the edge of the dispenser.) Check that the connections are clean and tight. Check the connection under the hinge cover, as well.

If the wiring doesn't have any damage, one of the above boards needs to be replaced. Additional testing will be needed. If you add a comment with the model of your Frigidaire, I may be able to provide information about the parts.

I hope this helps.

Cindy Wells

Hey friend, thank you for your inquiry!

Based off the information you have provided your Frigidaire refrigerator is displaying "5Y CE". I have researched that code and believe it is an error code of "SY CE" which means a communication error after power up. I would recommend resetting your refrigerator and you can do that by disconnecting power from your appliance for ten minutes.

If that does not help correct the issue it could be a faulty main control board or user interface board. I would consult with a technician to come out and provide an accurate diagnosis. I hope this information is helpful. -Matt

From what I read, the "L." that you see on the control panel indicated that the controls have been locked. According to the manual if you hold down the "alarm reset" button for 3 seconds the "L." will disappear allowing you to control the temperature again. I don't as of yet know what is causing your overall problem though...

Good Afternoon Bobby, I am happy to assist you. SY CE is commonly referred that the refrigerator has detected an error code between the main control board and the user interface (the control on the Freezer door). A tech would typically check the communication wiring wires between both parts to determine the cause of the error code. If the wiring is correct, then more than likely you are looking at a faulty main control board or user interface. Regrettably, this is not a simple DIY job. I would highly recommend reaching out to an expert technician to ensure the appropriate replacement part is ordered and is installed correctly to prevent future issues. I hope this information helps to some degree - thanks for your question, and please do not hesitate to reconnect.

Good Afternoon Cheryl, I am happy to assist you. Could the error code possibly be SY CE? If so, error code SY CE, commonly refers to a communication error at power up. Let's try resetting the refrigerator by either unplugging it or flipping the household circuit breaker off. It is important to wait roughly ten minutes and then turn on the refrigerator. If resetting the power does not correct the issue, than the unit could possibly be experiencing a communication problem with the control board or a faulty user interface board. In this regard, I would recommend reaching out to an expert technician to ensure the appropriate replacement part is ordered.

I suspect that the controller card is bad.

Dear Sue,

• SY CE Error Codes is a very common issue : the display board isn't communicating with the main PCB.
  
• Unfortunately, there is no way to test which board is causing the problem. That's why this error can be costly.
• Try to just unplug the refrigerator for 15 minutes and plug it back in to see if the error goes away.
• If the issue doesn't go away, then you'll need to replace one or two boards.
• Usually the Main Control Board under the refrigerator behind the kick panel is the part that tends to fail.
• If you Change the Main Board, it does not work; you gonna have to replace the Display Board.
• Try buying these board at an online store that accept Returns without conditions up to a year. Go online and put the boards number into any major search engine. Put the # one by one. You will find many sellers. Carefully pick one and do you homework

Good luck and keep me posted please,
JP