Si-95
Troubleshooting (Inverter)
Troubleshooting Inverter K Series
117
4.3
Outdoor Unit: Inverter Thermostat Sensor, Compressor Overload
Remote Controller
Display
LLLL888
8
Supposed Causes
■
Compressor overload
■
Compressor coil disconnected
■
Defect of inverter unit
Troubleshooting
Output current check
(VF065)
Inverter
output voltage
check
Inverter output voltage
is not balanced.
(Normal if within ±8 V [Y1])
(Note) Must be
measured when
frequency
is stable.
Compressor overload
Inspection of the compressor and
refrigerant system is required.
Compressor inspection
Inspect according to the diagnosis
procedure for odd noises, vibration and
operating status of the compressor.
NO
Replace the inverter unit.
YES
NO
The secondary
current of the inverter is
higher than 15 A (Y1)
for each phase.
Replace the compressor.
NO
YES
Compressor inspection
The compressor's coil is
disconnected.
YES
Disconnect
the the connection between
the compressor
and inverter.
After turning on again,
"L8" blinks again.
SI-95.BOOK Page 117 Friday, March 31, 2000 10:59 AM
