Malfunction Display: High/Low Pressure Sensor Error - Gree R410A Service Manual

Super Free Match
Service Manual

3.8 Malfunction display: High/Low pressure sensor error

MAINTENANCE 140
Pressure sensor error
The plug
on pressure sensor is correctly
connected to the socket on
mainboard, is it?
Yes
Measure the
DC voltage value between black
line and green line of the sensor: is it
OK?(0.5~4.5V)
Yes
Replace the mainboard of outdoor
unit
No
Check the orientation of
plug and socket
No
Replace the pressure
sensor