Admin Table of Contents
- 1 How do you force the defrost cycle on a Frigidaire refrigerator?
- 2 How does the defrost cycle work on a refrigerator?
- 3 How does a bimetal defrost thermostat work?
- 4 How do you activate defrost cycle?
- 5 How do you trigger a defrost cycle?
- 6 How do you replace the wire on a defrost heater?
- 7 How do the terminals of a defrost switch work?
How do you force the defrost cycle on a Frigidaire refrigerator?
If you have this type of Frigidaire refrigerator you can force your refrigerator to do a defrost cycle by pressing the refrigerator light switch 5 times within 6 seconds. at that point the control board should send electricity through the bi-metal defrost thermostat to the defrost heater.
How does the defrost cycle work on a refrigerator?
A defrost cycle runs when the heating component attached to the evaporator coil is activated. During the defrost, the coil runs hot to melt accumulated frost and ice, which allows the evaporator to resume its optimal heat absorption and freezer cabinet cooling functions.
How does a bimetal defrost thermostat work?
The defrost bimetal thermostat does this by activating a hot gas valve or an electrical heating element that raises the temperature near the evaporator, which then melts the frost that has formed.
How do I bypass defrost thermostat?
Bypass the Thermostat Turn off your power, and then remove the wiring from the thermostat, and connect them to your defrost heater. This should be easily managed when you are looking at the thermostat, the wires will be evident. Turn the freezer back on, and wait for 10 minutes.
Where is the defrost element in a fridge?
Locate your defrost heater. It can be located behind the back panel of the freezer section of your refrigerator, or under the floor of your refrigerator’s freezer section. Defrost heaters are commonly located beneath a refrigerator’s evaporator coils.
How do you activate defrost cycle?
To begin a manual defrost cycle, open the refrigerator door and depress the fresh food light switch five times within a six-second period. To stop the cycle, depress the switch again in the same pattern. The fresh food light must be operable in order for this method to work.
How do you trigger a defrost cycle?
To run a forced defrost cycle open the refrigerator door or doors if your refrigerator is a french door model. Then hold down the door switch or switches, the display should go blank. Next press the refrigerator temperature (-) button 3 times in 10 seconds and release the door switches.
How do you replace the wire on a defrost heater?
Pull the wiring harness from the defrost heater or from the back wall of your freezer. Some defrost heaters have wires that connect to each side while others have a wire attached to the end of the heater that travels up the side of the coil. Remove and discard the old heater.
What does a defrost heater do on a refrigerator?
The defrost heater is thermostatically controlled and is used to melt any frost formation on the evaporator. The defrost heater is permitted to operate for some length of time before the timer disconnects it from the circuit and permits the compressor to operate again.
What happens when the timer contact on a defrost heater changes?
When the timer contact changes position, the circuit to the thermostat is open and the circuit to the defrost heater is closed. The heater can now melt any frost accumulation on the evaporator. At the end of the defrost cycle, the timer contact returns to its normal position and permits the compressor to be operated by the thermostat.
How do the terminals of a defrost switch work?
Terminals 2 and 4 are connected to stationary contacts of the switch. In the normal operating mode, the switch makes connection between contacts 1 and 4. When the defrost cycle is activated, the contact will change position and make connection between terminals 1 and 2. Terminal 3 is connected to one lead of the motor.