Overload Protection Of Compressor Or Driver Error; Dc Fan Error Ef - Sinclair S therm Series Service Manual

3.4 Overload Protection of Compressor or Driver Error

3.5 DC Fan Error EF

Comp Overload Protection
Check if the AC
contactor is damaged
no
Check if the compressor
wiring is correct
yes
Check if the voltage is normal
yes
Check if the refrigerant of
the system is excessive
EF is displayed on
the wired controller
no
Is the motor wire
phase sequence right?
yes
Is the Fan wire
terminal loose?
no
Replace the mainboard AP2.
Does it work normally?
no
Replace the outdoor fan
yes
Replace the AC contactor
no
Adjust the
compressor wiring
no
Contact the power
supply company
yes
Recharge suitable
amount of the refrigerant
Adjust the motor wire
yes
Tighten the fan
wiring terminal
yes
Work Normally
144