12
3-2-5 If Operation By Remote Control Unit Is Impossible. (Initial Diagnosis)
1) Checklist :
(1) Is operation selector switch of the indoor unit set at "REMOTE"?
2) Troubleshooting procedure
Y
N
Y
Y
N
Y
N
N
N
N
Y
Y
Remove power cord and plug in again approx. 5 Seconds.
Is operating lamp blinking in 3 minutes and then lamp off?
Check as in the procedure "No Power
parts". Refer to page 8.
Normal
Replace battery.
LCD is faulty.
Replace button.
Check the receiver module?
"Beep" sound heard from the indoor unit when ON/OFF
button on the remote control unit pushed?
Voltage of battery less than 2.5V?(Remote Control Unit)
LCD display status of REMOCON normal?
Voltage at pin #26 of micom (IC04) change?
Micom (IC04) is faulty.
Transmission display lamp ( ) blinking when
ON/OFF button on the remote control unit pushed?
31039A(5)-All 4/17/01 5:36 PM Page 12
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