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Sharp AY-A079E Service Manual page 14

Split system room air conditioners
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AY/AE-A079E
AY/AE-A099E
19.Diagnosis procedure
When indoor fan motor is out of order or compressor lock occurs, the compressor, inddor fan motor, outdoor fan
motor, and louver are all stopped and the operation LED(red) turns on or off syncronously with the timimg of the
timer LED.
When the thermistor for room temperature or pipe temperature is open or short state, the operation LED turns on
or off syncrnoously with the timing of the timer LED by pushing continously for more than three seconds both
"TEST" button and "AUX." button.
Timer
LED
Indoor
Operation
fan motor
LED
Comp.-lock
Operation
LED
Thermistor
Operation
short state
LED
Thermistor
Operation
open state
LED
Timing chart of Timer LED and Operation LED of DIAGNOSIS PROCEDURE.
When "OI" button the remote controller or "AUX." button in the unit is pushed, the unit is free from DIAGNOSIS
PROCEDURE.
1sec. 1sec.
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
14
4sec.

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