Pioneer CB009 Owner's Manual page 12

Error Codes
Number
In-outdoor unit communication
1
checking channel is abnormal
2 Room temperature sensor
checking channel is abnormal
3 Evaporator sensor malfunction
4 Condenser sensor malfunction
5 Water pump temperature sensor
6 Outdoor malfunction
7 EEPROM malfunction
8 Water level alarm malfunction
9 DC motor speed out of control
10 Outdoor unit low pressure
malfunction
11 Refrigerant leak detection
system malfunction
Page 12
 
Operation
Cause
Indicator
Quick-flash
Quick-flash
Quick-flash Quick-flash
Quick-flash Quick-flash
Quick-flash Quick-flash
Quick-flash
Error
Timer
PRE-DEF
Code
Indicator
Indicator
E 1
Quick-flash
E2
Quick-flash
E3
E4 Quick-flash
E5
Quick-flash
E6
E7
E8
Quick-flash
Quick-flash
EC
Alarm
Indicator
Quick-flash
Quick-flash
Quick-flash
Quick-flash
Quick-flash