Samsung SH07AS2, Service Manual

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Samsung Electronics 18
Troubleshooting
4. Indoor unit observes operation condition of the air conditioner, and displays self diagnosis details on the display panel.
5. Operation with abnormal motion
Indoor unit room temperature sensor error
(open or short)
Indoor unit heat exchanger temperature sensor error
(open or short)
Indoor fan motor malfunction
EEPROM error
Option error
(option wasn't set up or option data error) Display
Flickering
Error Mode
LAMP
7-segment
Display
OPERATION TIMER TURBO
: Lamp flickering : Lamp off
No response from
the remote control
operation signal.
Unable to operate the
outdoor unit
• Plug out and plug in 5 seconds
later.
• Press the TURBO button with the
remote control.
• In 3 minutes, check the voltage
between the indoor unit terminal
block N(1) and 1.
Able to operate the
remote control.
Unable to operate
the remote control.
AC198V ~ AC242V
No power source
displayed.
OK
Press the (ON/OFF) button in the
indoor unit.
• If it operates, the remote control and
indoor unit receiver are in trouble.
• If not, the indoor unit is in trouble.
Problem with the outdoor unit or PCB
Problem with the relay (RY71) or PCB
No Abnormal condition Inspection Initial Diagnosis
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DB98_15920A(2)_1 04/3/9 11:01 AM Page 18