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3-84
Service Manual
TROUBLESHOOTING
Alarm
Code
Activation of Protection Device for Indoor Fan Motor
( Indoor Unit with AC Motor )
Cause
Check Item
Action
(Turn OFF Main Switch)
Event
Activation
of Internal
Thermostat for
Indoor Unit
Fan Motor
Measure resistance
with a tester.
Check continuity after
fan motor temperature
decreases to room temp.
Faulty
Internal
Thermostat
Failure
Replace fan motor if
no continuity.
Correct by tightening.
Replace connectors.
Contact
Failure
Check connection.
Repair connection.
Incorrect
Connection
Measure coil
resistance and
insulation resistance.
Replace motor if faulty.
Faulty Indoor Unit
Fan Motor
Yes
Yes
Yes
Yes
Replace motor.
No
No
No
Repair wiring and
connection.
No
Replace motor.
No
Yes
Does indoor fan
run?
Is fan motor hot?
Is there continuity
at the internal thermostat
of indoor fan motor?
Is connection bad
at connector?
Is coil resistance
of fan motor normal?
Check indoor temperature.
If it is unusual, take suitable
action to reduce it.
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.
+
This alarm code is displayed when over approximately 1A is applied to the indoor unit fan motor.
Содержание YVAHP072B31S
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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 ...
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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 ...
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Страница 1796: ... 2015 Johnson Controls Inc SM 15001 ...