How to reprogram maytag ice20 after replacing HV board

If you have replaced the HV control board on your Maytag MFI2067AES refrigerator and programmed the code from your refrigerator, but the code is not being saved, there could be a few possible causes:

1. Wrong board: It's possible that you may have installed the wrong control board for your refrigerator model. Make sure to double-check the part number and compatibility before installing a new control board.
2. Improper programming: Make sure that you are properly programming the control board with the correct code. Follow the manufacturer's instructions carefully and ensure that you are entering the code correctly.
3. Control board issue: It's possible that the control board itself may be defective and is unable to save the code. Try resetting the control board to factory defaults and reprogramming it with the correct code. If the issue persists, you may need to replace the control board again.
4. Other issues: There could be other issues with your refrigerator that are preventing the code from being saved, such as a faulty user interface or a problem with the door switch. You may need to perform further diagnosis or seek the help of a qualified repair technician to identify and fix the issue.

Did you put the correct code in? The code should be listed inside the unit.

I recently had the identical problem after replacing the high voltage control board myself. Although display looked normal, no response to programming attempts. All I could think of was that the low voltage board under the display ppanel was also bad and was about to go out and buy it ($240 locally) when I ddecided to check its connections first. Took off the display panel, unplugged the 4 connectors, plugged them all back in. When I powered up the fridge, it responded to the programming directions and has been working normally except the ice-maker made one batch of ice and then just stopped. Now I have to try figuring that one out.

First did you program the board correctly and second make sure all the connections to the board you replaced are in correctly. 

I have the same Maytage MFI2568AEB on the inside top left of the refrigerator the code is 0302, i still cannot enter the code, showing PEO OOO.

You have a bad high voltage board call the manufacturer, if the unit is under 2 yrs old they may help cover the repair with the problem your having.

I have recently gone through same problem . The cose that was installed in the new control card for MFI2568AEW was 1411.

HERE TIS RIGHT OFF THE INSTRUCTION SHEET.  THE TECH JUST LEFT. POWER UP REF. PROGRAM CODE IS LOCATED ON SERIAL PLATE ON THIS UNIT AFTER THE WORD CODE.-1. PRESS & HOLD THE DOOR ALARM KEYPAD.-2. PRESS & HOLD FREEZER TEMP DOWN KEYPAD.-3. RELEASE DOOR ALARM KEYPAD AND WAIT 3 SECS.-4.CONTROL WILL DISPLAY PE TO INDICATE PROGRAMMING MODE-5. ENTRY IS CONFIRMED BY PRESSING TEMP DOWN - KEYPAD ONCE MORE.-CONTROL WILL DISPLAY CURRENT PROGRAM CODE. THIS VALUE SHOULD BE VALIDATED THE THE PROGRAM CODE PRINTED ON UNIT SERIAL PLATE.-NOTE: IF PROGRAM CODE IS CORRECT, THE PROGRAMMING MODE IS EXITED BY CLOSING THE FRIG DOOR.-7.PRESS REFRIG TEMP UP KEYPAD + OR REFRIG DOWN KEYPAD -TO CHANGE THE DIGIT VALUE WITH EACH KEY PRESS.-8.THE DECIMAL POINT INDICATES THE SELECTED DIGIT. PRESS THE FREEZER TEMP UP KEYPAD + TO SELECT NEXT DIGIT.-9.ONCE DEIRED PROGRAM CODE IS DISPLAYED, PRESS AND HOLD THE FREZZER TEMP DOWN KEYPAD - UNTIL UNIT PROGRAM CODE BEGINS FLASHING INDICATING IT HAS BEEN SAVED. *note* IF YOU ATTEMPT TO ENTER AN INVALID PROGRAM CODE, THE CONTROL WILL NOT SAVE THE NEW CODE, BUT WILL BEEP! (THE UNIT WILL NOT RUN RUN WITH A UNIT PROGRAM CODE OF 0000). ONCE THE PROGRAM CODE HAS BEEN SAVED THE PROGRAMMING MODE IS EXITED BY CLOSING THE FRIG DOORS. 

See the post on Samurai Appliance Repair Man's site http://applianceguru.com/forum1/13035-1.html for instructions on how it's possible to fix the HV Controller Board power supply filter caps for $5 in Radio Shack parts (really!). You need to be able to solder electronic components, or know someone who can. There are 2 power supply filter caps that appear to go bad and the result is the blinking and flapping. I had the same problem and decided I could not wait for a $150 replacement back-ordered board.

Usually the owners manual would show the error codes so check there first. As for the compressor running, it "should" be cooling if the compressor is running. But lets go back a little, why was the HV board replaced?