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No jumper cap on the controller
Whether
the jumper cap is inserted
correctly and
tightly
Replace the jumper cap
with the same model
End
no
yes
Please install the
correct jumper
cap
yes
Eliminate the
malfunction
no
yes
Insert the
jumper cap
tightly
Eliminate the
malfunction
no
no
yes
Eliminate the
malfunction
Replace the control
panel
no
yes
Start the troubleshooting
of C5 malfunction
Start the troubleshooting
of U8 malfunction
