Si18-201
Troubleshooting - Outdoor Unit Related
Service Diagnosis
265
3.3.3
Fan Lock / Overcurrent
Outdoor Unit
Indication
E7
Method of
Malfunction
Detection
Fan lock is detected using the voltage signal given to the fan and number of turns of the fan
motor.
Overcurrent is detected by the signal from driver.
Malfunction
Decision
Conditions
When the fan ran with 30rpm or less continuously for 6 seconds in the waveform output
When OCP signal was sent from the fan driver
"
When a fan lock / overcurrent is generated 4 times, the system shuts down. (The 4-time
counter resets itself when no outdoor unit abnormality occurs within 60-minute cumulative
time after the error generation.)
Supposed
Causes
"
Interference by foreign matters with propeller
"
Faulty fan PC board
"
Faulty fan motor
Troubleshooting
Check No.4
Refer to P.301
Turn the power supply off.
YES
Remove obstacles.
Replace fan motor.
Could be temporary causes
including noise, etc.
Replace fan motor.
Replace fan PC board.
Can the propeller
be turned by hands?
Is the motor position
signal output?
(MF022)
NO
Check No. 4
Fan motor position signal
check
YES
NO
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
YES
Is there any obstacles?
NO
Is this
phenomenon
re-generated when turning
the power supply
back on?
YES
NO
Summary of Contents for BPMK928B42
Page 9: ...Si18 201 viii Table of Contents ...
Page 71: ...Specifications Si18 201 58 Specifications ...
Page 206: ...Si18 201 Remote Controller Operations 193 1 1 2 FVX25 35KZ ...
Page 207: ...Remote Controller Si18 201 194 Operations 1 1 3 FTXD25 35KZ ...
Page 208: ...Si18 201 Remote Controller Operations 195 1 1 4 FTK FTX50 60H ...
Page 209: ...Remote Controller Si18 201 196 Operations 1 1 5 FTKD FTXD50 60 71J ...
Page 214: ...Si18 201 Remote Controller Operations 201 ...
Page 216: ...Si18 201 Remote Controller Operations 203 ...
Page 217: ...Remote Controller Si18 201 204 Operations ...
Page 237: ...Method of Field Set Si18 201 224 Operating Test ...
Page 262: ...Si18 201 Troubleshooting SkyAir Indoor Unit Service Diagnosis 249 ...
Page 393: ...Wiring Diagrams Si18 201 380 Appendix FHYC35 50 60 71KVE9 3D005668C ...
Page 394: ...Si18 201 Wiring Diagrams Appendix 381 FHYC35 50 60 71KV1C9 ...
Page 395: ...Wiring Diagrams Si18 201 382 Appendix FDYM60 03FAV1 FDYM60 03FAVAL C 3D019816D OPTION ...
Page 396: ...Si18 201 Wiring Diagrams Appendix 383 FDYM60 03FAV1C ...