depends on the brand of frezzer .......either behind the plastic( panel/wall) in back off freezer could be at the top or the bottom on the side your ice maker would hook up..... or under the panel in the top of your refidgerator......if its just a stand alone frezzer there again it depends on the model i suggesst you try and follow the wires from the start cap on the comp for the freezer
On the Kenmore model 596.9535611 refrigerator, the defrost timer is typically located at the back of the refrigerator, near the compressor. You may need to remove the back panel of the appliance to access it. It's usually a small, cylindrical component that can be adjusted or replaced if necessary. Always ensure the refrigerator is unplugged before attempting any repairs.
To GE model GSSxxxx models, there is no defrost timer. It uses the main control board to time it.
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.
if defrost timer not working properly, refrigerator will be in continuous run.
The defrost timer on a Kenmore Cold Spot refrigerator is typically located in the control panel section, often at the back or bottom of the refrigerator, near the compressor. In some models, it may also be found behind a removable cover inside the refrigerator or freezer compartment. Check the user manual for your specific model for precise location details. If you're unable to locate it, inspecting the wiring diagram inside the appliance can also help identify the timer's location.
The defrost timer sometimes is built into the main board
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..
the timer
At the bottom of the refrigerator, in the front, behind the grill. It is retained by a 1/4" screw to a metal plate. The timer is behind the metal bracket or plate.
I found it myself in front on the bottom behind the grille.
the clicking you hear is more then likely just a noisy defrost timer..in some ge refrigerators the defrost timer is mounted close to the temp control.
To troubleshoot a Samsung refrigerator defrost issue, first check the defrost timer, heater, and thermostat for any malfunctions. Make sure the evaporator coils are not frosted over. If the issue persists, consider calling a professional technician for further diagnosis and repair.