Discharge Pressure Sensor Error
Forecast of Cause :
Check Point 3 : Check voltage of Main PCB (DC5.0V)
CN118
WHITE
RED
PRESSURE SENSOR (HIGH)
1 2 3
1 2 3
BLACK
PS
Discharge pressure sensor
When any of the following conditions is satisfied, a discharge pressure
sensor error is generated.
1. 30 seconds or more have elapsed since the outdoor unit power was turned
on and pressure sensor detected value 0.3V continued for 30 seconds
or more
2. 30 seconds or more have elapsed since the outdoor unit power was turned
on and pressure sensor detected value 5.0V was detected.
1. Discharge pressure sensor connector disconnection, open
2. Discharge pressure sensor defective
3. Main PCB defective
Check Point 1 : Check the discharge pressure sensor connection state
Connector connection state check
Cable open check
Check Point 2 : Check the discharge pressure sensor
Sensor characteristics check
* For the characteristics of the discharge pressure sensor,
refer to the "Service Parts Information 9".
Main PCB (CN118:1-3) voltage value = 5V
Remove the sensor from Main PCB, check the voltage.
Discharge pressure sensor (CN118:1-3)
If the voltage does not appear, replace Main PCB and set up original address.
Trouble shooting 40
Detective Actuators:
Detective details:
OUTDOOR UNIT Error Method:
OK
OK
DC
02-45
Outdoor unit :
POWER
MODE
ERROR
2
8
(L1)
(L2)
(L6)
(L5)
(L4)
(L3)
6
PUMP
DOWN
LOW
NOISE
PEAK
CUT
Indicate or Display:
Economy lamp : Continuous flash.
ERROR CODE : [E : 86]
Indoor Unit : Operation lamp: 8 time Flash,
Timer lamp: 6 time Flash
