74
TROUBLESHOOTING
Error Code
Part
Display Criteria
To check if the part is normal
or
Freezer Defrosting
Error
The separation of the freezer
compartment defrosting heater
housing part, contact error,
disconnection, short circuit or
temperature fuse error. One of
these error codes is displayed if the
defrosting operation of the freezer
or Cool Select Room does not finish
even after the continuous heating
operation has been performed for
120 minutes.
After separating the MAIN PCB CN70 wire from the
PCB, check the resistance between CN70 7 and
1. (For the resistance value, refer to the electric
wiring diagram). For 0 Ohm, check if the heater is
short-circuited. For ∞ Ohm, check if the wire or
temperature fuse is open-circuited.
Cool Select Room
defrosting Error
After separating the MAIN PCB CN70 wire from the
PCB, check the resistance between CN70 3 and
1. (For the resistance value, refer to the electric
wiring diagram). For 0 Ohm, check if the heater is
short-circuited. For ∞ Ohm, check if the wire or
temperature fuse is open-circuited.
Cool Select Room
Fan Error
One of these error codes is
displayed in case of the feedback
signal line contact error, the motor
wire separation or the motor error
when the fan motor starts to run.
The voltage of the MAIN PCB CN76 1↔5 : should
be between 7V~12V.
Ice Maker (Fridge)
Function Error
It occurs when there is a defect in
removing ice cubes or in making it
paralleled [ When there is an error
while doing self-diagnosis of the
Initial Motor Rotation.]
After replacing the Ice Maker (Fridge), plug in
the Fridge and check if the Ice Maker operates
normally
Ice Maker Fan Error
When the related Fan Motor
operates, it occurs if the contact
of the Feed Back Signal Wire is
defective, the Motor Wire is slipped
out or the Motor is defective.
The voltage of the MAIN PCB CN76 1↔6 : should
be between 7V~12V.
Main↔Panel Error
A communications error between the
Main and the Panel PCBs
Since an oscilloscope is required for the examination,
it is recommended replacing the Main PCB and then
checking the problem again.
Main – F Comp.
Inverter
Communication
Error
Display 44E in the panel :
F Comp. Inverter MICOM ↔ Main MICOM
communication error.
Actually, If there is not a problem, it is desirable to
replace Main and Inverter PCB With the oscilloscope
after a cable problem confirming.
Main – R Comp.
Inverter
Communication
Error
Display 45E in the panel :
R Comp. Inverter MICOM ↔ Main MICOM
communication error.
I/O Expander
Communication
Error
Display 46E in the panel :
I/O Expander ↔ Main MICOM
communication error.
It is desirable to replace Main PCB.
Main↔Dispenser
Panel Error
A communications error between the
Main and the Dispenser Panel PCBs
Since an oscilloscope is required for the examination,
it is recommended replacing the Main PCB and then
checking the problem again.
Summary of Contents for RF32FMQDBSR/AA, RF32FMQDBSR/AA
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