25
Pisa Use, Care, and Installation Guide
ZEPHYRONLINE.COM
Troubleshooting
Possible Problem
Possible Cause
Solutions
After installation, the
unit doesn’t work.
The power source is not turned ON.
Make sure the circuit breaker and the unit’s
power is ON.
The power line and the cable
locking connector is not connecting
properly.
Check the power connection with the unit is
connected properly.
The switch board or control board
wirings are disconnected.
Make sure the wirings at the switch board
and control board are connected properly.
The switch board or control board is
defective.
Change the switch board or control board.
The wires on control board are loose.
Make sure the wires on the control board
are connected properly.
Light works, but blower
is not turning.
The blower wire is not connected.
Make sure the blower wire is plugged into
the molex connector.
The thermally protected system
detects if the blower is too hot to
operate and shuts the blower down.
The blower will function properly after the
thermally protected system cool down.
Damaged capacitor.
Change the capacitor.
The blower is defective, possibly
seized.
Change the blower.
The unit is vibrating.
The blower is not secured in place.
Tighten the blower in place.
Damaged blower wheel.
Replace the blower.
The hood is not secured in place.
Check the installation of the hood.
The unit is whistling.
A filter is not in the correct position.
Adjust the filters until the whistling stops.
The duct pipe connections are not
sealed or connected properly.
Check the duct pipe connections to be sure
all connections are sealed properly.
The blower is working,
but the LumiLight LEDs
are not.
The LumiLight LED connector is
disconnected.
Connect the LumiLight LED connector.
Defective LumiLight LED.
Change the LumiLight LED.
The switch board or control board is
defective.
Change the switch board or control board.
LumiLight LEDs flicker
when changing speed
levels.
N/A
This is a normal operation and the hood is
working correctly.
