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Enter the TEST 3 MODE
Is the voltage value
between pins 10 (WH) and
4 (BL) of CON3 115 V AC?
Is Er-dH displayed?
Yes
Yes
Yes
No
Yes
Yes
No
CON6
CON3
Replace
MAIN PCB
Replace
MAIN PWB
Main
PCB
WH
BL
FUSE-M
CON3
10
4
DEF-Heater
Housing-A
BO
D-Sensor
7
8
BO
2
CON6
BO
BO
7
6
BL
BN
BK
2
1
7
6
1
3
1
2
BK
Is the connec tion loose?
pin4 BL
pin10 WH
pin4 BL
pin10 WH
115Vpin4 To pin 10
ResultTest Point
Reset TEST3 MODE(Normal)
Is the voltage value between
pins 10 (WH) and 4 (BL) of
CON3 for 0 V AC?
0 ~ 2 V
Reset/Norm op
ResultTest Point
Defrost Heater Error
Wiring dia gram
Relay Open
Reconnect
Relay operation