My Frigidaire Gallery refrigerator showing HI temp.and with code5Y and EF, what does it mean?

An EF code is indicative of an Evaporator Fan Circuit Failure. Can it be stopped by ice or frost? Absolutely. Press the freezer up button and the freezer down button simultaneously for 6-8 seconds and you will enter a test mode. Every time you press the fresh food button after entering the test you will advance to the next test. They are not in numerical order. Go to test 26 (The defrost circuit test) and it will show CL for closed or OP for open. If it shows OP you have a defrost issue. If CL there is no defrost problem. Next go to test 15 - keeping in mind they ( the tests are Not in numerical order). When you get to 15 press the main power on/off button. The 1st time you press it the display will show LO and the fan should be on low speed. The next time you press the power button it will show HI, and the fan should be on high. It is a twelve vdc fan motor wire colors red, yellow, brown, and blue. They originate at the j6a and j4a connectors. If the fan does not come on in the test the check will be made at the control. There should always be 12vdc between brown and red, and there should be 9 - 12 vdc between brown and yellow in the test. The blue wire is a tach wire and feeds info back to the lower control which is located behind the kick plate underneath the unit. EX factory service 22 years currently an instructor. If you are not equipped with the proper tools and or knowledge please call a competent technician. KEEP IT SIMPLE

Well my wife and were trying to figure it out what to do ...the fan motor isnt working and its getting warm.......pushed the buttons to get get fan on high and found out it was frozen due to us blocking the vents in back middle of freezer.......we got ice out the fan started and we loaded items back into freezer and made sure not to block airflow in back.....it was a s easy as that

• Hello Ruel;
  
  My name is Peter. I am a retired field service refrigeration technician.
  
  Its SY EF and not 5Y EF
  Error Code SY EF is the System Evaporator Fault.
  This usually means there is NOT enough air flow over the sensor, this can mean a faulty sensor, or evaporator fan motor.
  
  Look at the back of the freezer wall. Is there frost? You may have defrost heater. You unit will go through a defrost cycle every 8-10 hours. At this time everything will shut down except for your lights, your defrost heater will turn on for 20-30 minutes to defrost your evaporator (Cooling) coil. Then your unit will restart. If you have
  a bad defrost heater the cooling coil will ice up and lock up your fan. With a multi-meter set to the lowest Ohms. Unplug your unit. Disconnect the heater and Ohm it out. You should get a reading of 25 Ohms or more. If '0' or OL the heater is bad. You need to unplug for at least 24 hours to defrost.
  
  You may have a bad evaporator (Cooling) fan motor. Set your meter to Volts. If you get a reading across the motor of 110 or more volts the fan is bad.
  
  These parts are generally under $50.00 each. If you call a service technician the price will be marked up 200-300%.
  
• These parts are not difficult to replace unless you have a bottom freezer.
• You are looking at about a $350.00 service call.