Zephyr Pisa ZPI-E24AG Use, Care And Installation Manual page 21

TROUBLESHOOTING PROCEDURES FOR ZPI
Issue Cause
After installation, 1. The power source is not turned ON.
the unit doesn't
is not connecting properly.
3. Glass canopy is closed.
4. The switch board and control board wirings are
disconnected.
5. The switch board or control board is defective.
1. The blower is defective, possible seized.
blower is not
2. The thermally protected system detects if the
turning.
blower is too hot to operate and shuts the blower
down.
3. Damaged capacitor.
4. The blower wire is not connected.
The unit is 1. The blower is not secure in place.
vibrating.
2. Damaged blower wheel.
3. The hood is not secured in place.
The blower is 1. Defective halogen bulb.
2. The light bulb is loose.
lights are not.
The hood is 1. The hood might be hanging too high from the
not venting out
properly.
2. Wind from opened windows or opened doors in
of the hood.
4. The direction of duct opening is against the wind. 4. Adjust the duct opening direction.
5. Using the wrong size of ducting.
vibrating.
What to do
power is ON.
connected properly.
3. Glass canopy must be open to operate blower
and lights.
board and control board are connected
properly.
5. Change the switch board or control board.
1. Change the blower.
2. The blower will function properly after the
thermally protected system cool down.
3. Change the capacitor.
molex connector.
1. Tighten the blower screws in place.
2. Change the blower.
1. Change the halogen bulb.
2. Tighten the light bulb.
the bottom of the hood within 24" and 32"
range.
2. Close all the windows and doors to eliminate
duct opening.
5. Change the ducting to correct size.
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