4-6 Samsung Electronics
Error Indicator Cause Measures
Product’s state of operation
at the time of malfunction
(state of main component)
Method of
Diagnosis
Indoor
Fan
Outdoor
Fan
Comp.
Errors for all Indoor unit
communications
circuits of Indoor unit and Outdoor
unit
Operation
Off
Operation
Off
Operation
Off
Page 4-10
Communications error between
Indoor unit main Panel PBA
check Main PBA/Panel PBA
Operation
Off
Operation
Off
Operation
Off
Page 4-11
Camera / network communications
error
SUB PBA
Normal
operation
Normal
operation
Normal
operation
Page 4-12
Indoor unittemperature sensor
SHORT/OPEN
Normal
operation
Normal
operation
Normal
operation
Page 4-13
Indoor unitpipe IN temperature
sensor error SHORT/OPEN
Operation
Off
Operation
Off
Operation
Off
Page 4-14
Indoor unitpipe OUT temperature
sensor error SHORT/OPEN
Operation
Off
Operation
Off
Operation
Off
Page 4-14
(Self-diagnosis)
Detached EVA entrance sensor error
Operation
Off
Operation
Off
Operation
Off
Page 4-19
(Self-diagnosis)
Detached EVA exit sensor error
Operation
Off
Operation
Off
Operation
Off
Page 4-19
Problematic indoor unit upper fan
motor
※ Because the FAN MOTOR is a
BLDC MOTOR, it may malfunction
if the CONNECTOR is detached or
inserted while being supplied with
power. Please take measures 1~3
minutes after switching the power
OFF.
Normal
operation
Normal
operation
Normal
operation
Page
4-15~16
Problematic indoor unit middle fan
motor
Problematic indoor unit lower fan
motor
Most Indoor units will result in a
mixed operation error when cooling /
heating simultaneously
of the Indoor unit with the first
operation mode
Operation
Off
Normal
operation
Normal
operation
Page 4-17
Did not enter options set-up
Operation
Off
Operation
Off
Operation
Off
Page
4-2~4-4
K1 Feedback error
to Symptoms
Normal
operation
Normal
operation
Normal
operation
Page 4-18
4-3 Items to Verify Before Diagnosis
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