TEST MODE 1 Voltage [V]
CON3
2
nd
pin ~ 9
th
pin
0V
Defrost Heater Error (dH F)
1
Replace the
Door gasket
Check the Door gasket .
Is door gasket damaged?
Yes
No
2
Check the Defrost control part.
(1) Is Fuse-M resistance 34~42Ω?
No
Yes
Change
Defrost
Heater
4
Check the Heater Voltage.
Is voltage 112V ~ 116V?
Yes
3
Check the Defrost control part.
Is Defrost Sensor resistance
22kΩ↑ or OFF?
OFF
22kΩ↑
Replace
product
Input Test 3 Mode
(Push the button 3 times)
Replace
Main PCB
NO
TEST MODE 3 Voltage [V]
CON3
2
nd
pin ~ 9
th
pin
112V ~ 116V
5
Check the Heater Voltage.
Is voltage 0V?
Yes
Input Test 1 Mode
(Push the button 1 times)
Replace
Main PCB
No
6
Explain to customer