Troubleshooting - Samsung CH094EAM Service Manual

5-2 Troubleshooting

When error occurs in air conditioner, error code is displayed on indoor unit display lamp and outdoor unit.
5-2-1 Indoor unit LED error diagnosis
I Error detection and reoperation
I
G If error occurs during the operation, badness is indicated by LED flickering and all operation is stopped except LED.
I
G When reoperating by remote control and switch determine the error mode after normal operation.
I Indoor unit LED lamp display at error detecting
Error type
Power reset
Error of temperature sensor
in the indoor unit (Open/Short)
Error of heat exchanger sensor
in the indoor unit
Error of the outdoor temperature sensor
Error of the condenser temperature sensor
Error of the discharge temperature sensor
1. No communication for 2 minutes between indoor units
(Communication error for more than 2 minutes)
2. Indoor unit receiving the communication error from
outdoor unit
3. Outdoor unit tracking 3 minutes error
4. When sending the communication error from the
outdoor unit, the mismatching of the communication
numbers and installed numbers after completion
of tracking (Communication error for more than 2 minutes)
Communication error between indoor units
1. Error of electronic expansion valve close
2. Error of electronic expansion valve open
3. 2'nd detection of high temperature cond
4. 2'nd detection of high temperature discharge
5. Error of reverse phase
6. Compressor down due to 6'th detection of freezing
Detection of the float switch
Error of setting option switches for optional accessories
EEPROM error
EEPROM option error
: On : Flickering
✳ If you turn off the air conditioner when the LED is flickering, the LED is also turned off.
Samsung Electronics
: Off
LED lamp display
Operation Defrost Timer
Remarks
Air flow Filter
1. Indoor unit error
(Display is unrelated with
operation)
2. Outdoor unit error
(Display is unrelated with
operation)
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