Sharp AY-XP9GHR Service Manual page 10

AYXP9GHR
Status of Indication Malfunction
indoor/ by LED1 No. dis-
outdoor on out- played on
units door unit main unit
*2 display sec-
tion *1
Main
cate-
gory
Indoor/ 19
outdoor
units in
complete
shutdown
Indoor/ 20
outdoor
units in
operation
Indoor/ 88
outdoor
units in
operation
Content of diagnosis
Sub- Main category Sub-category
cate-
gory
-0 Indoor unit fan Indoor unit fan error
-0 Indoor unit con- EEPROM data error
trol PCB
Control and dis- Communication
play PCB error
Inspection location/method
(1) Check the indoor fan
motor for proper rotating
operation.(Check fan
lock.)
(2) Check the lead wire of the
indoor fan motor for open-
circuit.
(3) Check CN1 of the indoor
unit fan motor for secure
installation.
(4) No abnormality found in
above inspections (1)
through (3).
(EEPROM read data
error)
(1) Check for disconnected
connector between control
PCB and display PCB,
and open-circuit in lead
wires.
(2) Check that control PCB
outputs signals correctly.
3 – 17
Remedy
(1) Replace the indoor fan
motor.
(2) Replace the indoor fan
motor.
(3) Correct the installa-
tion of CN1 of the
indoor fan motor.
(4) Replace the indoor
unit control PWB.
Replace the indoor
unit control PWB.
(1) Insert connectors cor-
rectly, or replace con-
trol PWB.
(2) Replace control PWB.