Trouble Shooting

Issue	Possible Cause	Solution
After Installation,	The power is not on.	Make sure the circuit breaker and the unit’s power is
both motors and		ON. Use a voltage meter to check the power supply.
lights are not	The wire connection is not secure.	Check and tighten wire connection.
working.	The control panel and processor board	Check wire continuity from control panel to processor
	wiring are disconnected.	board.
	The motor transformer is defective.	Check the power input and power output on the
		motor transformer.
		If it’s needed, replace the motor transformer.

	The control panel and processor board is	Replace the control panel or processor board.
	defective.
Lights are	The motor(s) is defective.	Replace the motor.
working, but	The capacitor(s) is defective.	Replace capacitor(s).
motor(s) is not.	The control panel or processor board is	Replace the control panel or processing board.
	defective.
The range	The blower system is not secure.	Tighten the turbine impeller/squirrel cage and air
hood is		chamber.
vibrating.	The turbine impeller/squirrel cage is	Replace the turbine impeller/squirrel cage.
	not balanced.
	Hood is not secured in place.	Check the installation of hood, tighten the
		mounting bracket.
The motor is	Halogen Light bulb(s) is defective.	Try placing the trouble light bulb(s) to a working
working, but		socket, if the bulb(s) still doesn’t work; replace
the lights are		the halogen light bulb(s).
not working.	The light wiring(s) is loose.	Check wire continuity from processor board to
		light transformer to halogen light housing(s).
	Light transformer is defective.	Check power input and power output on the light
		transformer. If it’s needed, replace the light
		transformer.
	The control panel or processor board is	Replace the control panel or processing board.
	defective.

The range	The range hood is installed outside of	Adjust the clearance between the range hoods
hood is not	the manufacture recommended	and cook top to 27” to 30”. For Island range
venting out	clearance.	hood and professional series range hood, the
correctly.		clearance between the range hoods and cook
		top is 30” to 36”.
	There is no make-up air inside the	Open the window to enhance the performance
	house.	of the range hood by creating a sufficient make-
		up air.
	Obstacle blocking the pipe work.	Remove all obstacles from the duct work.

	The pipe size is smaller than the	Change the ducting according to the
	suggested pipe size.	manufacture suggestion.
Cold air is	The pipe connection is not properly	Check the pipe installation.
coming into the	sealed.
home.

TROUBLE SHOOTING

Issue

Possible Cause

Solution