Troubleshooting; Wired Remote Controller - Samsung AEX160EDEHA Service Manual

4. Troubleshooting

4-1 Wired remote controller

- If an error occurs, (
- Press the Test button to see the error code.
Error mode
Indoor unit communication
error
Indoor unit/outdoor unit
communication time-out error:
errors in more than 6 packets
Indoor temperature sensor
(open/short error)
Indoor unit Eva In sensor
(Open/Short)
Indoor unit Eva In sensor
disconnection
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
Emission temperature
excessively high
Heating operation blocked
Cooling operation blocked
Outdoor fan 1 error
[Inverter] Compressor startup
error
[Inverter] Total current error/
PFC over current error
Samsung Electronics
RC160MHXGA_SM_E_34513A(1)_4.indd 37
) icon will be displayed on the wired remote controller.
Contents
Check the communication cable of indoor unit. Check
the DC output voltage at the communication terminal
Check the outdoor communication cable connection.
Check DC output voltage and the communication
terminal
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 the disconnection of indoor unit pipe sensor
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
No error (DISCHARGE temperature control)
Check the operation setting state
Check temperature sensor
Check the operation setting state
Check temperature sensor
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
Measure
Compressor/Indoor unit
Error type
Outdoor unit/
Communication
Operation Off
error
Communication
Operation Off
error
Indoor sensor
Operation Off
error
Indoor sensor
Operation Off
error
Indoor sensor
Operation Off
error
Self diagnostic
Operation Off
error
Communication
Operation Off
error
Communication
-
error
Outdoor sensor
Operation Off
error
Outdoor sensor
Operation Off
error
Outdoor sensor
Operation Off
error
Outdoor unit
- protection
control error
Self diagnostic
Operation Off
error
Self diagnostic
Operation Off
error
Self diagnostic
Operation Off
error
Outdoor unit
Operation Off protection
control error
Outdoor unit
Operation Off protection
control error
37