Let's try this again. My frigidaire freezer model Lffh21f7hwg, the display board reads "of". How do I reset it. I do not have the owners manual.

The error code -H9 on a Frigidaire upright freezer typically indicates a communication error between the control board and the display board. To troubleshoot this issue, try unplugging the freezer for a few minutes, then plugging it back in to see if the error code clears. If the error persists, it may be necessary to replace one or both of the boards. Contact a qualified appliance repair technician for further assistance.

I've seen this on samsung refrigerators. It sounds like you put it in display mode. What's the model number?

Thank you for your post, Cynthia!

Based off the information you have provided your Frigidaire freezer is not cooling properly and is now displaying the temperature of 56. It sounds like your freezer is not on, even though it has power the compressor is not turned on. I would suggest pressing either the down or up arrow three times within five seconds. That should power on your compressor and it should start cooling properly. I hope this is helpful and if you should need further assistance please feel free to reconnect. -Matt

Hello Friend, I am happy to assist you!

I see that your Frigidaire freezer (LFFH21F7HWG) is not working. Often this is because it could have floating restriction in the line or something more complicated like an issue with the sealed system that only a professional can repair. This can include the compressor not working, the evaporator fan not turning, or even coolant in the lines at incorrect levels to properly cool. It is typically normal to hear the compressor running, humming, or even to be a little warm. However, if you do not hear the compressor at all, I suggest cleaning your refrigerator out including the coils you can reach (typically located in the bottom behind the toe grille) and make sure no food items are blocking any vents in your appliance. Also try checking and see if the door seal is bad; place a dollar bill between the body of the freezer and the door. Now close the door. The dollar bill should stay in place and pull out with a small amount of resistance. If the dollar bill falls out when placed between the gasket and cabinet double check to see if the door is being blocked by anything stopping it from closing. If any of these suggestions prove to be ineffective, connect with a professional to accurately pinpoint any potentially more serious issues.

Best regards! - Z

Free Frigidaire Freezer User Manuals ManualsOnline com Try this website. I know it is discontinued, but the manufacturer will be able to email you something.

Hello Michael - Sounds like the temperature control was accidently turned OFF. When this occurs the temperature control turns off the compressor, but does not disconnect the power to the light bulb or other electronics. Let's try activating the freezer by pressing the UP arrow until display shows "4" or desired setting. Allow 24 hours for temperature to stabilize. For future reference you can lock the control to keep from accidently changing the temperature setting. I ask that you please follow up with a comment on the post, at your convenience, to advise if further troubleshooting is needed or if the unit's status has changed successfully. Thank you.

usually the back wheels are rollers that allow you to pull the fridge straight out from the wall, so NO, not leveling in the back, but you don't need it anyway, just use the front adjustments

You will need to replace the electronic control board to solve this problem.

these freezer are designed to run about 70 percent of the time the temp displayed can vary by +/- 3 degrees..make sure you have fan operation in the freezer and the air flow is not blocked or restricted. also make sure that the door is sealing properly

OK, this is a failed controller board, any E4* is Power supply & Controller Board, probably caused by a power spike.You need to get the unit looked at to see if it is able to be repaired, and if parts are available. If you wish to try and repair this yourself, you must get a service manual, to do so, and to be able to order parts.