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3-80
Service Manual
TROUBLESHOOTING
Alarm
Code
Activation of Protection Device for Indoor Fan Motor
(Ducted (Medium Static and Slim) Type)
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.
+
7KLVDODUPFRGHLVGLVSOD\HGZKHQWKHLQGRRUIDQPRWRUURWDWHVDWOHVVWKDQUSPIRU¿YHVHFRQGV
three times in 30 minutes during the operation.
Failure of I.U. PCB2
Failure of Fan Motor
Failure of I.U. PCB2
(*1)
Abnormal voltage is supplied
for fan motor.
Is LED1 on
I.U. PCB2 OFF?
(*1)
Check connectors PCN201
and CN201 on I.U. PCB2.
No
No
Yes
Does fan motor run?
Replace I.U. PCB2.
Replace Fan Motor.
Replace I.U. PCB2.
Replace Fan Motor
Yes
Yes
Occurrence of
Alarm Code “19”
(Normal Voltage: DC 280V)
Failure of Fan Motor
No
Check that 208/230V
is applied between
L1 and L2 of TB1.
NOTE:
Turn OFF the power source completely before
connector checking.
Otherwise, it may cause a DC fan motor failure.
(Built-in PCB for the DC fan motor may be damaged.)
Dose fan motor
meet decision basis
at “Checking for
Fan Motor”?
● Perform the following
check after setting the airflow
volume to “HIGH”.
● A high voltage is applied
to electrical parts.
Perform the check carefully
to prevent an electric shock.
Содержание YVAHP072B31S
Страница 2: ......
Страница 10: ...viii Service Manual ...
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Страница 17: ...Service Manual 1 1 INSTALLATION 1 Installation ...
Страница 559: ...Service Manual 1 543 INSTALLATION 7 7RXFK DFN WR QLVK WKLV VHWWLQJ The screen returns to the Service Menu screen 7 ...
Страница 577: ...Service Manual 1 561 INSTALLATION 9 Touch Back to return to the Service Menu screen 9 ...
Страница 920: ......
Страница 921: ...Service Manual 2 1 OPERATION 2 Operation ...
Страница 983: ...Service Manual 2 63 OPERATION Clipped Ceiling Type Grille for Front Discharge 2SWLRQDO Decorative Panel 2SWLRQDO ...
Страница 1184: ...2 264 Service Manual OPERATION 7 Touch on Return to Group sel to return to Setting Group Selection 7 ...
Страница 1315: ...Service Manual 3 1 TROUBLESHOOTING 3 Troubleshooting ...
Страница 1425: ...Service Manual 3 111 TROUBLESHOOTING Surge Absorber SA Surge Absorber SA Surge Absorber SA 3RVLWLRQ RI 6XUJH EVRUEHU 9 9 1 1 1 ...
Страница 1461: ...Service Manual 4 1 MAINTENANCE 4 Maintenance ...
Страница 1657: ...Service Manual 5 1 EXTERNAL INPUT OUTPUT AND FUNCTION SETTING 5 External Input Output and Function Setting ...
Страница 1728: ......
Страница 1729: ...Service Manual 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions ...
Страница 1738: ...6 10 Service Manual FIELD WORK INSTRUCTIONS 6 8 Mollier Chart for R410A ft 3 l b ...
Страница 1739: ...SERVICE PARTS LIST Service Manual 7 1 7 Service Parts List ...
Страница 1795: ......
Страница 1796: ... 2015 Johnson Controls Inc SM 15001 ...