4-14 Samsung Electronics
4-2-4 1 way cassette type
㽞 Error detection and reoperation
1. If an error occurs during operation, the LED flashes to indicate that there is a problem then all operations stop except LED.
2. When resuming operation with remote controller and switch, it determines error mode after normal operation.
㽞LED lamp display when error is detected
Error LED lamp Display
Cause Actions to take
Operation Defrost
XX
䢻
XX
• Breakaway from the room temperature
sensor connector.
• Cut the room temperature sensor wire.
• Check the connection between the room tem-
perature wire and the main PCB of the indoor
unit.
• Check the pattern of the room temperature sen-
sor part of the main PCB of the indoor unit and if
parts are open or shorted.
䢻
X
䢻
XX
• Disjoint of the in/out sensor connector
of the indoor heat exchanger.
• Cut the in/out sensor wire of the
indoor heat exchanger.
• Check the connection between the room tem-
perature wire and the main PCB of the indoor
unit.
• Check the pattern of the room temperature sen-
sor part of the main PCB of the indoor unit and if
parts are open or shorted.
XXX
䢻
X
• Indoor fan motor is non-operative.
• Indoor fan motor is operating
slowly.
• Indoor fan motor operates at an exces-
sive speed.
• Check if a motor connector has been
dismounted. (CN44. CN73)
• Check the fastening of the motor fan.
䢻
XX
䢻
X
• Disjointed or cut off of outdoor tem-
perature sensor.
• Disjointed or cut off of the outdoor
sensor of heat exchanger (COND).
• Dismounted/cut off of the outdoor
discharge sensor.
• Check the PCB display window of the outdoor
unit then refer to a breakdown diagnosis.
XX
䢻䢻
X
• Communication error between indoor
units and outdoor units for more than
2 minutes.
• 3 min. error of the outdoor unit track-
ing. (multi-product specification)
• Inconsistency between the number
of installed units and communication
units. (multi-product specification)
• Check the connection between indoor and out-
door units
• Check the settings for indoor Main/RMC address
switch
XX
䢻䢻䢻
• The detection of secondary high tem-
perature at COND.
(outdoor heat exchanger)
• The detection of secondary high tem-
perature at discharge.
• Reverse detection error.
• Check the PCB display window of the outdoor
unit then refer to breakdown diagnosis.
XXX
䢻䢻
• Deviation of float sensor connector.
• Cut of float sensor wire.
• Check the connection between main PCB and
float sensor in the indoor unit.
لTurn onስFlashingΉTurn off