65
Troubleshooting
Diagram 2:
Main test points:
● Is the temperature of Indoor and Outdoor Unit too high?
● Is the fan of Indoor and Outdoor Unit operating normal?
● Is the radiating of Indoor and Outdoor Unit well(Including the fan speed is lower or not )?
● Is the pipe temperature sensor normal?
Overload Anti-high
temperature protection
Is the outdoor unit environment
temperature over the 53
℃
or not?
Normal protection,please
improve the indoor and
outdoor unit temperature
environment before use
Improve the heat radiation
environment of unit.
Indoor and outdoor unit
heat radiating is poor.
Indoor and outdoor
motor work well.
1. Checking the fan terminals
connect well or not?
2. Checking the motor of
Indoor and Outdoor Unit
is well or not?
Change the motor capacity C1
Checking the pipe temperature sensor is
normal or not comparing pipe temperature
sensor resistance table(Checking the
temperature of out pip while cooling
checking the temperature of inside pip)
Check the pipe temperature
sensor work well.
Change the relevant
pipe temperature
sensor
End
Replace the corresponding control board
(changed the outdoor control board during
cooling, changed the indoor control board
Cut the power wait for 20 mins
Change outdoor
motor
Y
