unit... LED3 and LED7 on printed circuit board flash /  
2. The main power is turned on while the indoor-outdoor power 
supply wires are not connected (open circuit at section B) / 
Symptom:  / Remote control unit... Display of “No power supply” / 
NOTE: / Indoor unit... No display / Outdoor unit... LED3 and LED7 
on printed circuit board flash /  
3. The main power is turned on while the remote control unit 
connection cord is not connected (open circuit at section C) / 
Symptom:  / Remote control unit... Display of “No power supply” / 
NOTE: / Indoor unit... LED1 on printed circuit board stays 
illuminated / Outdoor unit... LED1 on printed circuit board stays 
illuminated
 / (When remote control display shows “Power supply”)
(When remote control display shows “No power supply”)
 Remedy 
1. Turn off the main power. /    
2. Connect the disconnected wire correctly. /    
3. Turn on the main power. /    
4. After 1 minute, start the operation using the remote control. / 
(Indoor unit operation will start according to the remote control 
setting.) / (Outdoor unit operation will start after 3-5 minutes.)
 NOTE: 
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