SM-16007
3-51
TROUBLESHOOTING
O
7KH581LQGLFDWRUUHGÀDVKHV
O
The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code*
1)
,
the model name*
1)
and the number of connected indoor units are displayed on the LCD. The indoor unit
number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
*1) Except for some models.
+
:KHQLQVXI¿FLHQWYROWDJHRURYHUYROWDJHLVGHWHFWHGEHWZHHQWHUPLQDOV³5´DQG³6´RIWKHIDQFRQWUROOHU
three times in 30 minutes, the operation stops and this alarm code is displayed. If this occurs less than
three times in 30 minutes, the operation automatically restarts.
Yes
Does the voltage
fall during operation
by operation of
other apparatus?
Restart operation.
Check wiring and
wire sizes.
Yes
Yes
Yes
No
No
No
In case of 208/230V 60Hz:
Is the power supply voltage 208V+10% or
230V+10% ?
In case of 460V 60Hz:
Is the power supply voltage 460V+10%?
In case of 208/230V 60Hz:
Is the power supply voltage more than 177V?
In case of 460V 60Hz:
Is the power supply voltage more than 391V?
Is connection correct
at fan controller?
Does LED201 on
fan controller ON?
Connect it correctly.
Yes
Fan revolution can
increase higher
than 60Hz
(lower than 30Hz).
Fan stops
immediately.
Fan stops when
fan revolution is
increasing
(31Hz ~ 60Hz).
How is
fan motor
operation?
No
No
Faulty fan controller.
Replace it.
*1): If the fan controller has high voltage, perform the high voltage discharge work according to Section 4.2.1.1.
*2): For the maintenance and replacement of the fan controller, perform the high voltage discharge work according to
Section 4.2.1.1.
Alarm
Code
Abnormal Fan Controller Voltage
,QVXI¿FLHQW)DQ&RQWUROOHU9ROWDJHRU2YHUYROWDJH
<Outdoor Unit PCB Display Indication>
Abnormal Fan Controller
Voltage
Summary of Contents for YVAHP0721CW Series
Page 2: ......
Page 10: ...viii SM 16007 ...
Page 14: ......
Page 15: ...SM 16007 1 1 INSTALLATION 1 Installation ...
Page 163: ...SM 16007 2 1 OPERATION 2 Operation ...
Page 164: ...2 2 SM 16007 OPERATION Ɣ 5HIHU WR WKH 6HUYLFH 0DQXDO IRU QGRRU 8QLW RU RQWUROOHU ...
Page 165: ...SM 16007 3 1 TROUBLESHOOTING 3 Troubleshooting ...
Page 284: ......
Page 285: ...SM 16007 4 1 MAINTENANCE 4 Maintenance ...
Page 360: ......
Page 390: ......
Page 391: ...SM 16007 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions ...
Page 400: ...6 10 SM 16007 FIELD WORK INSTRUCTIONS 0ROOLHU KDUW IRU 5 ft 3 l b ...
Page 401: ...SERVICE PARTS LIST SM 16007 7 1 7 Service Parts List ...
Page 416: ... 2016 Johnson Controls Inc SM 16007 Code No LIT 12012400 Issued November 2016 ...