Troubleshooting 23-1
OK
OK
Detective details:
Forecast of cause:
1. High pressure switch connector
disconnection, open
2. High pressure switch characteristics failure
3. Main PCB failure
When power is turned on,
"high pressure switch : open" is detected.
Detective actuators:
High pressure switch
Check Point 1 : Check the high pressure switch connection state
Connector and wiring connection state check
Cable open check
Check Point 2 : Check the high pressure switch characteristics
Switch characteristics check
* For the characteristics of high pressure switch, refer to below.
Check Point 3 : Replace main PCB
Change main PCB, and execute check operation again.
03-30
High pressure switch error
(AOU24/30RGLX)
Type of contact
Characteristics of pressure switch
C
H
Pressure
CN90
Pressure switch
4.2 0.1MPa
3.2 0.15MPa
Contact : Short Open
Contact : Open Short
Indicate or Display:
Indoor unit
Operation lamp: 8 times Flash,
Timer lamp : 6 times Flash
Wired remote control
Error code : [E : 86]
Outdoor unit : No indication
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