Samsung AC026MNJDKH/EU Service Manual page 40

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 mode Contents
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
Remocon Option for MDS is set for ON,
but MDS kit is disconnected or the
signals for sensors are abnormal.
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
Measure
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 the wire connection
Check the MDS kit
Check the main PBA
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
Error type
Outdoor unit/
Compressor/Indoor
unit
Communication
Operation Off
error
Communication
Operation Off
error
Indoor sensor
Operation Off
error
Indoor sensor
Operation Off
error
Indoor sensor
Operation Off
error
Normal operation
MDS kit Error
(without MDS kit)
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
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