Trouble shooting – Kobe Range Hoods RA2830SB User Manual
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TROUBLE SHOOTING
Issue Possible
Cause
Solution
The power is not on.
Make sure the circuit breaker and the unit’s power is 
ON. Use a voltage meter to check the power supply. 
The wire connection is not secure.
Check and tighten wire connection.
The control panel and processor board 
wiring are disconnected. 
Check wire continuity from control panel to processor 
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. 
After Installation, 
both motors and 
lights are not 
working. 
The control panel and processor board is 
defective. 
Replace the control panel or processor board.
The motor(s) is defective.
Replace the motor.
The capacitor(s) is defective.
Replace capacitor(s).
Lights are 
working, but 
motor(s) is not.
The control panel or processor board is 
defective.
Replace the control panel or processing board.
The blower system is not secure.
Tighten the turbine impeller/squirrel cage and air 
chamber.
The turbine impeller/squirrel cage is 
not balanced.
Replace the turbine impeller/squirrel cage.
The range 
hood is 
vibrating.
Hood is not secured in place.
Check the installation of hood, tighten the 
mounting bracket.
Halogen Light bulb(s) is defective.
Try placing the trouble light bulb(s) to a working 
socket, if the bulb(s) still doesn’t work; replace 
the halogen light bulb(s).
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 motor is 
working, but 
the lights are 
not working.
The control panel or processor board is
defective.
Replace the control panel or processing board.
The range hood is installed outside of 
the manufacture recommended 
clearance.
Adjust the clearance between the range hoods 
and cook top to 27” to 30”. For Island range 
hood, the clearance between the range hoods 
and cook top is 30” to 36”.
There is no make-up air inside the 
house.
Open the window to enhance the performance 
of the range hood by creating a sufficient make-
up air.
Obstacle blocking the pipe work.
Remove all obstacles from the duct work.
The range 
hood is not 
venting out 
correctly.
The pipe size is smaller than the 
suggested pipe size.
Change the ducting according to the 
manufacture suggestion.
The pipe connection is not properly 
sealed. 
Check the pipe installation.
The damper is not properly installed or 
is missing from the installation.
Check the damper installation.
Cold air is 
coming into the 
home.
The damper is not installed.
By installing the damper, it will help to eliminate 
air backflow.