Labconco Intelli-Sense Multi-Speed Blowers 7183413 - Manuel (Page 45)

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ROUBLESHOOTING
Refer to the following table if your blower fails to operate properly. If the
suggested corrective actions do not solve your problem, contact Labconco for
additional assistance.
PROBLEM CAUSE CORRECTIVE ACTION
Remote blower won’t
operate.
Wires not connected
at junction boxes or
switches. Check connection of switches.
Check connection to control box
on top of fume hood, connection
of switch control wires, and
connection of shielded control
wires from roof blower. If needed,
replace control box on top of fume
hood.
Circuit breakers
tripped in building
electrical supply. Reset circuit breakers.
Blower wiring is
disconnected.
Inspect blower wiring and 2 or 3
position switch.
Blower motor is
defective. Check connection of ECM motor
cables or replace ECM motor.
Shaft coupling is
loose.
Tighten shaft coupling with
lockwashers between ECM motor
and blower wheel.