Tosot TWH09UB-K3DNA2E - Page 56

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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
Is the
contr ol ter minal of PG motor
connected tightl y ?
Replace PG motor
End
yes
no
Is malfunction
eliminated
yes
no
Inser t the control
ter minal of PG
motor tightly
no
no
Stir the blade by
hand to see whether
the blade rotate s
smoothly
Reinstall the blade and
motor correctly
Is m alfunction
eliminated
no
no
yes
yes
Turn on the
unit agai n ; measur e whether the output
voltage on control ter minal for PG m otor
is more than 50V within 1 min after the
louvers ar e opened
no
yes
yes
Is the motor
star ted up
no
Is malfunction
eliminated
yes
yes
yesno
yes
Is m alfunction
eliminated
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.