2014 960-914-06 (General SVC)

- 76 -

Only for training and service purposes

Display

code

Title Cause of error Check point & Normal condition

Sensor error of high

pressure

Abnormal value of sensor

(Open/Short)

• Bad connection of connector PCB

• Bad connection high pressure connector

• Defect of high pressure connector (Open/Short)

• Defect of connector PCB (Open/Short)

• Defect of outdoor main PCB.

Is sensor connected

to PCB correctly?

Connect sensor to PCB correctly

Replace corresponding

pressure sensor

Yes

Replace the pressure sensor

Yes

END

After replacement of outdoor

unit main PCB is the system

also abnormal?

Is pressure sensor OK?

(Check the value of

pressure sensor.

Cf. Output voltage is about

1.4V at 1500kPa)

Display

code

Title Cause of error Check point & Normal condition

51 Over capacity

• Over capacity Combination

• Check the indoor unit capacity.

• Check the combination table.