Wired Remote Controller - Samsung AC026RN1DKG Service Manual

Troubleshooting

4-2-5 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
Contents
mode
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)
High Pressure Switch Error
or High Pressure Switch
Connector Open
Emission temperature
excessively high
High pressure blockage error
(Refrigerant completely
Leakage error)
4-18
Measure
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 electrical 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.
Check Comp Pressure
Check the Connection of the CN003 on the MAIN-
OUT PBA
(Error that only covers an outdoor unit capacity of 7.1
KW or less)
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).
Product operation in
error condition
Error type
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
Outdoor Operation Off Protection
Control Error
Outdoor unit
- protection
control error
Self diagnostic
Operation Off
Samsung Electronics
error
error
error
error
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error
error
error
error
error
error
error