Wired Remote Controller - Samsung AC030JN4DCH Service Manual

Troubleshooting

4-2-4 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.
Contents
Indoor unit communication
error
Duplicated address setting
error
No response error address from
indoor unit
Indoor temperature sensor
(open/short error)
Indoor unit Eva In sensor
(Open/Short)
Indoor floating switch
secondary detection
Indoor/outdoor
communication error (1 min)
Communication error between
indoor/outdoor INV MAIN
MICOM (1 min)
Outdoor temperature sensor
error
COND temperature sensor error
[Inverter] Emission temperature
sensor error
Detection of Indoor Freezing
(when Comp. Stops)
Protection of Outdoor Overload
(when Comp. Stops)
Emission temperature
excessively high
High pressure blockage error
(Refrigerant completely
Leakage error)
Heating operation blocked
Cooling operation blocked
Outdoor fan 1 error
[Inverter] Compressor startup
error
[Inverter] Total current error/
PFC over current error
4-14
Check the communication cable of indoor unit.
Check the DC output voltage at the communication
terminal.
Check address setting of Indoor units.
Check indoor unit's quantity setting in outdoor unit.
Check electriacl connection and setting.
Check indoor unit room temperature sensor.
Check indoor unit PCB connector CN41. (White)
Check indoor unit pipe sensor.
Check indoor PCB connector CN41.(White)
Check indoor unit float sensor.
Check indoor PCB connector CN5. (black)
Check the communication connection between indoor
and outdoor units.
Check the power line and communication cable
connection status
Check MAIN MICOM .
Check INVERTER MICOM.
Check sensor connection status.
Check sensor location.
Check sensor resistance.
Check sensor connection status.
Check sensor location.
Check sensor resistance.
Check sensor connection status.
Check sensor location.
Check sensor resistance.
Check whether the indoor unit air intake is blocked.
Check the operation of the indoor fan.
Check sensor connection status.
Check sensor location.
Check sensor resistance.
No error. (DISCHARGE temperature control)
Check whether the outdoor unit service valve is open.
Check the connection of the pipes.
Check the operation of the EEV.
Check for refrigerant leakage. (Completely leakage).
Check the operation setting state.
Check temperature sensor.
Check the operation setting state .
Check temperature senso.
Check input power connection status.
Check the connection status between the motor and
outdoor unit PCB.
Check indoor/outdoor fuse.
Check the compressor connection status.
Check the resistance between difference phases of the
compressor.
Check the input power
Check the coolant charging status
Check the normal operation of outdoor fan
Product operation in
error condition
Outdoor unit/
Compressor/Indoor unit
Communication
Operation Off
Communication
Operation Off
Communication
Operation Off
Indoor sensor
Operation Off
Indoor sensor
Operation Off
Self diagnostic
Operation Off
Communication
Operation Off
Communication
-
Outdoor sensor
Operation Off
Outdoor sensor
Operation Off
Outdoor sensor
Operation Off
Outdoor unit
Operation Off protection
control error
Outdoor unit
Operation Off protection
control error
Outdoor unit
- protection
control error
Self diagnostic
Operation Off
Self diagnostic
Operation Off
Self diagnostic
Operation Off
Self diagnostic
Operation Off
Outdoor unit
Operation Off protection
control error
Outdoor unit
Operation Off protection
control error
Samsung Electronics
error
error
error
error
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error
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error
error
error
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error
error
error