54
Installation and Maintenance
Service Manual
7. High Temperature and Overload Protection (AP1 below means control board of outdoor unit) E8
Start
If the outdoor ambient temperature is
higher than 53°C?
is good?
If the indoor and outdoor fan are
running normally?
mainboard
Replace outdoor
Connect normally?
Adjust the
connection
Replace fan
capacitor
Replace motor
Fan capacitor is broken?
Motor is broken?
Replace mainboard
Improve the radiating environment of
unit (clean the heat exchanger and
remove surrounding obstacles)
Unit restarts
normally
normally
Normal protection, please use it
after improving the outdoor ambient
temperature
Unit restarts
End
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
To Next Page
Loading...
