Si18-201
Troubleshooting - Split Type Indoor Unit
Service Diagnosis
235
1.5.3
Operation Halt Due to Fan Motor (AC Motor) or Related Abnormality
Remote
Controller
Display
A6
Indoor Unit LED
Display
A
5
B
5
Note:
No LED Display on FTK(X)25/35J Series.
Method of
Malfunction
Detection
The rotation speed detected by the hall IC during fan motor operation is used to determine
abnormal fan motor operation.
Malfunction
Decision
Conditions
When the detected rotation speed is less than 50% of the HH tap under maximum fan motor
rotation demand.
Supposed
Causes
"
Operation halt due to short circuit inside the fan motor winding.
"
Operation halt due to breaking of wire inside the fan motor.
"
Operation halt due to breaking of the fan motor lead wires.
"
Operation halt due to faulty capacitor of the fan motor.
"
Detection error due to faulty indoor unit PCB (1).
"
Detection error due to faulty indoor unit PCB (2).
Troubleshooting
Check No.15
Refer to P.309
Rotate the fan by hand.
Check No. 15
Check hall IC
Operate the fan.
Does it rotate?
NO
Does it rotate smoothly?
Is there an output?
Is it at the rated voltage?
Is there conductivity?
NO
Check the capacitor's
conductivity
Check the fan motor voltage.
(immediately after re-start)
Is it at the rated voltage?
Check the fan motor voltage.
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
Replace the fan motor or indoor
unit PCB.
Replace the fan motor
∗
2 Measure the voltage between
the red and black lead wires of
the fan motor, and check if the
maximum voltage reaches the
rated voltage.
Replace indoor unit PCB (2).
(PCB (1) for FTK(X)25/35J)
Replace the fan motor.
Replace the indoor unit PCB (2)
(PCB (2) for FTK(X)25/35J)
Replace the capacitor.
(Replace PCB (2).)
(PCB (2) for FTK(X)25/35J)
Replace the fan motor.
(MF003)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Содержание BPMK928B42
Страница 9: ...Si18 201 viii Table of Contents ...
Страница 71: ...Specifications Si18 201 58 Specifications ...
Страница 206: ...Si18 201 Remote Controller Operations 193 1 1 2 FVX25 35KZ ...
Страница 207: ...Remote Controller Si18 201 194 Operations 1 1 3 FTXD25 35KZ ...
Страница 208: ...Si18 201 Remote Controller Operations 195 1 1 4 FTK FTX50 60H ...
Страница 209: ...Remote Controller Si18 201 196 Operations 1 1 5 FTKD FTXD50 60 71J ...
Страница 213: ...Remote Controller Si18 201 200 Operations 1 1 9 FHYC35 50 60 71K Optional Accessory BRC7C612WC ...
Страница 214: ...Si18 201 Remote Controller Operations 201 ...
Страница 216: ...Si18 201 Remote Controller Operations 203 ...
Страница 217: ...Remote Controller Si18 201 204 Operations ...
Страница 234: ...Si18 201 Method of Field Set Operating Test 221 2 3 Interface Adaptor for Room Airconditioner KRP928A1S ...
Страница 237: ...Method of Field Set Si18 201 224 Operating Test ...
Страница 262: ...Si18 201 Troubleshooting SkyAir Indoor Unit Service Diagnosis 249 ...
Страница 393: ...Wiring Diagrams Si18 201 380 Appendix FHYC35 50 60 71KVE9 3D005668C ...
Страница 394: ...Si18 201 Wiring Diagrams Appendix 381 FHYC35 50 60 71KV1C9 ...
Страница 395: ...Wiring Diagrams Si18 201 382 Appendix FDYM60 03FAV1 FDYM60 03FAVAL C 3D019816D OPTION ...
Страница 396: ...Si18 201 Wiring Diagrams Appendix 383 FDYM60 03FAV1C ...