Trouble shooting 27
OUTDOOR UNIT Error Method:
OK
OK
Detective Actuators:
High pressure switch
Detective details:
Forecast of Cause :
1. High pressure switch connector disconnection, open
2. High pressure switch characteristics failure
3. Main PCB failure
When the power was turned on, "high pressure switch : open" was failure.
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 the check operation again.
02-28
Pressure Switch Error
Type of contact
Characteristics of pressure switch
C
H
Pressure
Pressure switch
3.2 0.15MPa
Contact : Short Open
Contact : Open Short
(CN120)
Indicate or Display:
Error code : 86 ( 86.4)
Main PCB
Outdoor unit :
POWER
MODE
ERROR
2
8
(L1) (L2) (L6)(L5)(L4)(L3)
6
PUMP
DOWN
LOW
NOISE
PEAK
CUT
4.2 0.15MPa
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