Troubleshooting Guide - Sharp AY-XP9LSR Service Manual

[8] TROUBLESHOOTING GUIDE

1. SELF-DIAGNOSIS FUNCTION AND DISPLAY MODE
1) To call out the content of the self-diagnosis memory, hold down the emergency operation button for more than five seconds when the indoor unit is
not operating.
a) According to the content of the self-diagnosis memory, the Operation LED (main category) and the Plasmacluster Ion LEDs (sub-category)
flash in sync with the Timer LED on the indoor unit.
b) In the event a complete shutdown occurs due to a malfunction, the Operation LED (red), Timer LED (yellow) and Plasmacluster Ion LED (blue)
flash to indicate the general information of the generated malfunction.
c) If the power cord is unplugged from the AC outlet or the circuit breaker is turned off, the self-diagnosis memory loses the stored data.
2) Display of detailed self-diagnosis result with main category and sub-category indications
When malfunction information is called out, the main category and sub-category of the self-diagnosis result are indicated by the Operation, Timer,
and Plasmacluster Ion LEDs on the indoor unit.
* 1:Example of self-diagnosis result displayed on indoor unit: Suction thermistor open-circuit error
*1: Example of self-diagnosis result displayed on indoor unit: Suction thermistor open-circuit error
Timer LED [yellow]
Operation LED [red]
Plasmacluster Ion LED [blue]
* 2:The self-diagnosis display function of the outdoor unit indicates the error information by flashing LED1 on the outdoor unit according to the
content of self-diagnosis.
The self-diagnosis display function of the outdoor unit is active only for about 3 to 10 minutes after self-diagnosis is performed during operation,
and the display returns to normal condition after this display period.
The content of self-diagnosis cannot be called out by the self-diagnosis display function of the outdoor unit.
Example of self-diagnosis display on outdoor unit : Compressor high-temperature abnormality
* 3:The content of diagnosis is transferred to the indoor unit via serial communication, but it does not trigger a complete shutdown operation.
ATTENTION
Do not insert and pull out the outdoor unit DC Fan motor connector (CN3) during power on.
(It may result in damaging the Fan motor.)
Basic flashing cycle due to error
ON
OFF
Figures in ( ) indicate numbers (binary notation) assigned based on the flashing sequence.
ON
Flashing for main category indication
OFF
Flashing for sub-category indication
1 sec 1 sec 0.6 sec 1 sec 0.6 sec 1 sec 1 sec 1 sec
ON
OFF
1 sec 1 sec 1 sec 5 sec
0.6 sec 1 sec 0.6 sec 1 sec 1 sec
3 – 14
AYXP9LSR
Main category Sub-category
Malfunction No.