Diagnosis Procedure - Sharp AH-AP18CE Service Manual

AY-AP18CE AY-AP24CE
AH-AP18CEAH-AP24CE
AE-A18CE AE-A24CE
AU-A18CE AU-A24CE
20.

Diagnosis procedure

When indoor fan motor is out of order or compressor lock occurs, the compressor, indoor fan motor, outdoor
fan motor, and louver are all stopped and the operation LED(red) turns on or off synchronously 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 synchronously with the timing of the timer LED by pushing continously for more than 5 seconds
"AUX." button during suspension of operation.
Indoor
fan motor
Comp.-lock
Thermistor
short state
Thermistor
open state
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.
When the louver unit is not properly installed, all lamps on the indicator panel will blink, operation are all stop
and Remote signal is not accept.
ON
Timer
LED
OFF
ON
Operation
LED
OFF
ON
Operation
LED
OFF
ON
Operation
LED
OFF
ON
Operation
LED
OFF
1sec. 1sec.
4sec.
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