Si12-411A
Troubleshooting
Service Diagnosis
193
Troubleshooting
Check No.12
Refer to P.213
Turn off the power and turn it on
again.
C
heck No.
12
Check the capacitor voltage.
Replace the outdoor unit
PCB.
* Inverter checker
Part No.: 1225477
Correct the power supply or
replace the SPM.
(Replace the outdoor unit
PCB.)
Replace the outdoor unit
PCB.
Replace the compressor.
Replace the outdoor unit
PCB.
Check the supply voltage.
(R2848)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
∗
Running current
as shown at right with relay
cable 1 or 2?
YES
Current
(guideline)
2 sec
Time
Rising with increasing
frequency
Capacitor charged when
the indoor unit or outdoor
unit main relay turns on
NO
NO
DC380±30V?
YES
Voltage within
the allowable range (Supply
voltage±15%)?
YES
NO
Any LED off?
Compressor running?
YES
NO
YES
NO
Get the system started.
Measure the rectifier input voltage.
Turn off the power. Disconnect the
harnesses U, V and W.
Check with the inverter checker (
∗
).
Turn off the power and reconnect
the above harnesses. Then turn on
the power again and get the
system restarted.
Summary of Contents for FTKE25BVM
Page 1: ...C Series Applied Models zInverter Multi Cooling Only zInverter Multi Heat Pump Si12 411A...
Page 6: ...Si12 411A Table of Contents v Index i Drawings Flow Charts v...
Page 7: ...Si12 411A vi Table of Contents...
Page 67: ...Specifications Si12 411A 56 Specifications...
Page 173: ...Instruction Si12 411A 162 System Configuration...
Page 227: ...Check Si12 411A 216 Service Diagnosis...
Page 295: ...Si12 411A iv Index...
Page 298: ...Si12 411A Printed in Singapore 03 2005 AK COS...
