Airwell VRF Series User Manual

Engineering manual
324
3 Outdoor units troubleshooting
Outdoor unit - Compressor discharge temperature protection
Remote controller display d1, d8
Possible reason
 Discharge temperature abnormal
 Discharge temperature sensor abnormal
 Outdoor electrical board abnormal liquid solenoid valve abnormal
Diagnostic
Yes
No
Yes
No
No
No
Is liquid solenoid valve
connectin
g
well?
Is discharge temperature
sensor connecting well?
Yes
Yes
Check whether the
resistance of this sensor
is normal?
Is discharge temperature
hi
g
h than 107℃?
Connect well the wires, reset
power supply and run the
unit again
Check refrigerant quantity
Change a new discharge
temperature sensor
Change outdoor electrical
board

Airwell VRF Series Specifications

General

Brand	Airwell
Model	VRF Series
Category	Air Conditioner
Language	English