Look behind the toe plate in front of the fridge, usually mounted near the center, or it will be mounted on the inside of the fresh food section, behind the control housing. Be sure to unplug the fridge before attempting refrigerator repair on this control.
The Maytag freezer model MQU1654BEW is designed as a manual defrosted unit and doesn't feature an auto defrost.
To GE model GSSxxxx models, there is no defrost timer. It uses the main control board to time it.
It is possible that the defrost timer is bad or that there is a leaking gasket on the door. IF the frost appears far in the freezer, it is probably the defrost timer. If the frost is built up near the inside edges of the door, the gasket is loose or bad
the defrost timer is part of the circut board that has your ice cube selector switches on it..rite above where the ice comes out on the outside of the freezer door..
Manual defrost is the instructions for you to manually defrost your freezer and automatic defrost is saying the freezer defrost on it's own.
The defrost timer is located behind the light panel in the ceiling of the fridge compartment. There are two screws that hold it against the plastic plate it sits on and hold the timer wheel against a hole in that plate which lets you advance it with out having to remove it.
Maytag's MFI2266AE 21.8-cubic-foot bottom-freezer refrigerator is a Maytag product.
if defrost timer not working properly, refrigerator will be in continuous run.
Refer to your owner's manual. If you lost it, one can usually be downloaded from the manufacturer's website. If that fails, try manually defrosting some of the items in your freezer. You may also call Maytag to come and inspect the freezer, particularly if it is under warranty.
The Frigidaire FFC0511 Chest Freezer is equipeed with automatic defrost.
If you have already tried adjusting the temp controls the problem is likely a defrost control that is stuck in the "On" position. It is operated by the same timer as the ice maker. This is not a do-it-yourself repair.
I believe the obvious would be the benefit, you would not have to manually defrost the freezer, bbesides that there is no difference.