47
9.2.2 Indoor unit and outdoor unit communication protection error diagnosis and solution
Yes
No
No
Change the indoor PCB
Change the outdoor PCB
Power on. Is the E1 extinguished
after 3 minutes?
Yes
Power on. Is the E1 extinguished
after 3 minutes?
Change the outdoor PCB
Yes
Power off, then power on the A/C by
the breaker.(reconnect the power
wire). Is the E1 extinguished?
Check the wiring on the outdoor
terminal and indoor terminal follow
the wiring diagram. Is all the
connecting correctly?
-24V<Vs<+24V?
(Vs is the voltage between S and N).
No
Is the wiring to the outdoor PCB
connecting correctly?
Is the wiring to the indoor PCB
connecting correctly?
No
Change the indoor PCB
Yes
Содержание WYB-GMFI SERIES
Страница 17: ...15 5 Wiring Diagram 5 1 Indoor Units 009 012 018 024 ...
Страница 18: ...16 5 2 Outdoor Units 009 012 018 ...
Страница 19: ...17 024 ...
Страница 42: ...40 Defrosting action For 18k 24k models Model FD FD1 018 90 100 024 ...