37 / 79
!
WARNING
To avoid risk of electrical shock that can cause death or severe personal injury,
disconnect unit from power before servicing unless tests require power.
9-2. Freezing Failure
. (Foods are not frozen/cold.)
9. How to Service
Refer to error display
in operation and function
Start
Change the
Comp.
Change Temp-Fuse
Y
N
N
Y
N
Y
Y
N
Y
N
Change the Controller
Change the
defective motor
Change Main PCB
Check lead wire
Change the
Defrost heater.
Check ice formation on Eva.
and if refrigerant leak
is found, repair it.
N
N
Y
Y
Y
N
N
■
How to check Defrost heater :
Measure resistance of the heater
∴
35~42Ω → Good
※
Left & Right side of evaporator
Inverter Controller
is OK?
Does Comp.
work?
Any error code
on Front PCB?
F-Fan & C-Fan
work ok?
F-Fan & C-Fan
motor is ok?
Wiring connection
is ok?
Temp-Fuse is ok?
(on the evaporator)
Defrost heater
Is ok?
Ice formation on Eva.
is ok?
Y
■
How to check the inverter controller :
1) Run “Accella Ice” function in condition of icemaker on.
The M-
PCB will send the signal “comp on” to controller.
2) Disconnect the connector(2pin) of controller from cabinet.
3) Measure voltage of connector on cabinet.
∴
DC5.4~6.6V
→ Good