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Troubleshooting
Defrost Heater Error
1
Check the Door gasket .
Is door gasket damaged?
No
2
Check the Defrost control part.
(1) Is Fuse-M resistance 0 Ω?
(2) Is Defrost Heater resistance
48~54Ω?
Yes
3
Check the Defrost control part.
Is Defrost Sensor resistance
22kΩ↑ or OFF?
22kΩ↑
Replace the
Yes
Door gasket
Change
Fuse-M
No
Replace
OFF
product
4
Input Test 2 Mode
(Push the button 2 times)
Check the Heater Voltage.
Is voltage 112~116V?
TEST MODE 2
CON3
nd
th
5
pin ~ 6
pin
Yes
5
Input Test 1 Mode
(Push the button 1 time)
Check the Heater Voltage.
Is voltage 0V?
TEST MODE 1
CON3
nd
th
5
pin ~ 6
pin
Yes
6
Explain to customer
Replace
NO
Main PCB
CON3
Voltage [V]
112V ~ 116V
Replace
No
Main PCB
CON3
Voltage [V]
0V
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