Troubleshooting
Samsung Electronics20
6-2-2 Error mode display of outdoor unit board
Normal operation and communication (Indoor
_
Outdoor unit)
Normal operation and communication (2 micom on the outdoor PCB)
Communication trouble between two micoms on the outdoor PCB
Over current of IPM circuit
Over voltage of IPM circuit
Over current or voltage of PFC circuit
Trouble of discharge temp-sensor (open / short)
Trouble of AC current temp-sensor (open / short)
Trouble of outdoor temp-sensor (open / short)
Trouble of heatsink temp-sensor circuit (open / short)
Trouble of DC link voltage circuit
Trouble of OLP temp-sensor (open / short)
YELLOW GREEN RED
LAMP of Display Monitor
Description
: Lamp on
: Lamp flickering
X : Lamp off
X
X
XXX
XX
XX
Trouble of deice temp-sensor (open / short)
Deice sensor temperature is too low under minus ambient temperature
operation (sensor normal)
Trouble of the control power of the outdoor
Trouble of communication (Indoor
_
Outdoor unit)
DB98_00000A(1)_1 1/29/04 4:22 PM Page 20
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