Troubleshooting Sheet

10
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Measure the voltage of this foot to neutral
wire on the mainboard
Troubleshooting for
H6 malfunction
Stir the blade
with a tool to see whether
the blade rotates
smoothly
Replace PG motor
End
yes
no
Is malfunction
elimi nated
yes
no
Inser t the control
ter minal of PG
motor tightly
no
no
Reinstall the blade and
motor correctly
Is malfunction
elimi nated
no
no
yes
yes
Turn on the
unit again ; measur e whether the output
voltage on contr ol terminal for PG m otor
is mor e than 50 V within 1 m in after the
louver s are opened
no
yes
yes
Is the motor
started up
no
Is malfunction
elimi nated
yes
yes
yesno
yes
Is malfunction
elimi nated
Tighten the screw; reassemble the blade, motor
and shaft bearing rubber base sub-assy to make
sure there is no foreign object between them
Replace the mainboard
with the same model.
Check if the connection of PG
motor feedback terminal is firm.
Check if the connection
of PG motor control
terminal is firm.