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SiBE04-302
Troubleshooting
Service Diagnosis
95
4.4
Fan Motor (AC Motor) or Related Abnormality
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 indoor unit PCB.
Troubleshooting
Check No.16
Refer to P.127
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 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 (1).
Replace the fan motor.
Replace the indoor unit PCB (1)
Replace the capacitor.
(Replace PCB (1).)
Replace the fan motor.
(R1946)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Содержание ARK25BVMB
Страница 10: ...SiBE04 302 List of Function 1 Part 1 List of Function 1 Functions 2 1 1 Cooling Only 2 1 2 Heat Pump 5 ...
Страница 17: ...Functions SiBE04 302 8 List of Function ...
Страница 31: ...Specifications SiBE04 302 22 Specifications ...
Страница 137: ...Check SiBE04 302 128 Service Diagnosis ...
Страница 170: ...SiBE04 302 Outdoor Unit Removal Procedure 161 2 Slide the MID upward and release Step Procedure Points ...
Страница 172: ...SiBE04 302 Outdoor Unit Removal Procedure 163 4 Remove the fan motor Step Procedure Points ...
Страница 177: ...Outdoor Unit SiBE04 302 168 Removal Procedure 2 Slide the reactor assembly this side and release Step Procedure Points ...
Страница 184: ...SiBE04 302 Others 175 Part 8 Others 1 Others 176 1 1 Explanation 176 1 2 Jumper Settings 177 ...
Страница 195: ...Wiring Diagrams SiBE04 302 186 Appendix ...
Страница 199: ...SiBE04 302 iv Index ...