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Troubleshooting
SiBE12-519
138
Service Diagnosis
4.4
Fan Motor or Related Abnormality
4.4.1
AC Motor
Remote
Controller
Display
A6
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 control PCB.
Troubleshooting
Check No.16
Refer to P.178
Rotate the fan by hand.
Check No. 16
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 control
PCB.
Replace the fan motor
Replace control PCB.
Replace the fan motor.
Replace the control PCB.
∗
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 the capacitor.
(Replace the control PCB.)
Replace the fan motor.
(R3219)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Содержание 2MKS40DVMB
Страница 10: ...SiBE12 519 List of Functions 1 Part 1 List of Functions 1 Cooling Only 2 2 Heat Pump 4 ...
Страница 15: ...Heat Pump SiBE12 519 6 List of Functions ...
Страница 29: ...Heat Pump SiBE12 519 20 Specifications ...
Страница 89: ...Instruction SiBE12 519 80 System Configuration FDK X S25 35C Names of parts Indoor Unit 3 6 8 9 10 7 1 4 5 2 ...
Страница 135: ...Instruction SiBE12 519 126 System Configuration ...
Страница 211: ...Outdoor Unit SiBE12 519 202 Removal Procedure ...
Страница 212: ...SiBE12 519 Others 203 Part 8 Others 1 Others 204 1 1 Test Run from the Remote Controller 204 1 2 Jumper Settings 205 ...
Страница 223: ...Wiring Diagrams SiBE12 519 214 Appendix ...