How to Use The Monitor Switch On The Inverter PC Board SiE-05C
326 Troubleshooting PLUS Series
5.5 Defect of Compressor
Remote Controller
Display
LL
LL
99
99
Supposed Causes Defect of compressor
Pressure differential start
Defect of inverter unit
Troubleshooting
YES
YES
Unsatisfactory pressure
equalization
Check refrigerant system.
Replace the inverter unit.
Compressor inspection
Inspect according to the
diagnosis procedure for odd
noises, vibration and
operating status of the
compressor.
Disconnect the
the connection between the
compressor and
inverter.
The
difference
between high and
low pressure when starting
is 2kg/cm²=
(0.196 MPa).
Inverter
output voltage
check Inverter output
voltage is not balanced.
(Normal if within ±8 V [Y1, YAL])
(Note) Must be measured
when frequency is
stable.
After turning on again,
"L9" blinks again.
NO
NO
(VF162)
SI-05C.BOOK Page 326 Monday, November 6, 2000 4:13 PM
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