Troubleshooting
Press the boost button/ depth
adjusting knob when the
blower runs, the air velocity
and the volume doesn’t
change.
PCBA or switch
assembly is broken
PCBA in the duct
housing or switch in
the handle housing
Following the procedure in the
diagnosing section to test the PCBA,
If it is broken, replace PCBA. If PCBA
works fine, test the switch and
replace the switch assembly if it is
not working.
The air velocity and the
volume are decreased
compared with normal use.
The fan in the duct
is worn.
Open the housing set, take off the
fan baffle and check the fan. If the
fan is worn, replace the motor and
ducted assembly.
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