Troubleshooting - Samsung HH105EZM Service Manual

5. Troubleshooting

I Detection of errors
G If an error occurs during the operation, an LED flickers and the operation is stopped except the LED.
G If you re-operate the air conditioner, it operates normally at first, then detect an error again.
5-1 LED Display on the receiver & display unit
I LED Display
Abnormal conditions
Power reset
Error of temperature sensor in indoor unit
(OPEN/SHORT)
Error of heat exchanger sensor in indoor
unit(OPEN/SHORT)
Error of outdoor temperature sensor
Error of COND sensor
Error of DISCHARGE sensor
(OPEN/SHORT)
1. No communication for 2 minutes between
indoor unit and outdoor unit
(communication error for more than
2 minutes)
2. Indoor unit receiving the communication
error from outdoor unit
3. Outdoor unit tracking 3 minute error
4. When sending the communication error from
outdoor unit the mismatching of the
communication numbers and installed
numbers after completion of tracking. (com-
munication error for more than 2 minutes)
1. Communication error between indoors
(Communication error for more than
2 minutes)
2. Slave of indoor unit tracking error
- If you turn off the air conditioner when the LED is flickering, the LED is also turned off.
- If you re-operate the air conditioner, it operates normally at first, then detect an error again.
16
Indicators
Concealed Type
Blue Red
Standard Type
Operating
Displayed on appropriate indoor unit
which is operating
Displayed on appropriate indoor unit
which is operating
Displayed on appropriate indoor unit
which is operating
Displayed on outdoor unit
1. Error of indoor unit: Displayed on
the indoor unit regardless of
operation
2. Error of outdoor unit: Displayed on
the indoor unit which is operating
Error of indoor unit: Displayed on the
indoor unit regardless of operation
: On : Flickering
Samsung Electronics
: Off