Product specifications

Samsung Electronics 37
4. Troubleshooting
4-1 Wired remote controller
- If an error occurs, ( ) icon will be displayed on the wired remote controller.
- Press the Test button to see the error code.
Error mode Contents Measure
Product operation in
error condition
Error type
Outdoor unit/
Compressor/Indoor unit
Indoor unit communication
error
Check the communication cable of indoor unit. Check
the DC output voltage at the communication terminal
Operation Off
Communication
error
Indoor unit/outdoor unit
communication time-out error:
errors in more than 6 packets
Check the outdoor communication cable connection.
Check DC output voltage and the communication
terminal
Operation Off
Communication
error
Indoor temperature sensor
(open/short error)
Check indoor unit room temperature sensor. Check
indoor unit PCB connector CN41 (White)
Operation Off
Indoor sensor
error
Indoor unit Eva In sensor
(Open/Short)
Check indoor unit pipe sensor. Check indoor PCB
connector CN41(White)
Operation Off
Indoor sensor
error
Indoor unit Eva In sensor
disconnection
Check the disconnection of indoor unit pipe sensor Operation Off
Indoor sensor
error
Indoor floating switch
secondary detection
Check indoor unit float sensor. Check indoor PCB
connector CN5 (black)
Operation Off
Self diagnostic
error
Indoor/outdoor
communication error (1 min)
Check the communication connection between
indoor and outdoor units. Check the power line and
communication cable connection status
Operation Off
Communication
error
Communication error between
indoor/outdoor INV
l
MAIN
MICOM (1 min)
Check MAIN MICOM
Check INVERTER MICOM
-
Communication
error
Outdoor temperature sensor
error
Check sensor connection status
Check sensor location
Check sensor resistance
Operation Off
Outdoor sensor
error
COND temperature sensor error
Check sensor connection status
Check sensor location
Check sensor resistance
Operation Off
Outdoor sensor
error
[Inverter] Emission temperature
sensor error
Check sensor connection status
Check sensor location
Check sensor resistance
Operation Off
Outdoor sensor
error
Emission temperature
excessively high
No error (DISCHARGE temperature control) -
Outdoor unit
protection
control error
Heating operation blocked
Check the operation setting state
Check temperature sensor
Operation Off
Self diagnostic
error
Cooling operation blocked
Check the operation setting state
Check temperature sensor
Operation Off
Self diagnostic
error
Outdoor fan 1 error
Check input power connection status
Check the connection status between the motor and
outdoor unit PCB
Check indoor/outdoor fuse
Operation Off
Self diagnostic
error
[Inverter] Compressor startup
error
Check the compressor connection status
Check the resistance between difference phases of the
compressor
Operation Off
Outdoor unit
protection
control error
[Inverter] Total current error/
PFC over current error
Check the input power
Check the coolant charging status
Check the normal operation of outdoor fan
Operation Off
Outdoor unit
protection
control error
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