Zephyr ZVO-M90AG - Manuel (Page 16)

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T
roubleshooting
TROUBLESHOOTING PROCEDURES FOR VERONA WALL
Issue Cause What to do
After installation,
the unit doesn’t
work. 1. The power source is not turned ON. 1. Make sure the circuit breaker and the unit’s
power is ON.
2. The power line and the cable locking connector
is not connecting properly.
2. Check the power connection with the unit is
connected properly.
3. The wires on the control board are loose. 3. Make sure the wires on the control board are
connected properly.
4. The switch board and control board wirings are
disconnected.
4. Make sure the wirings between the switch
board and control board are connected
properly.
5. The switch board or control board is defective. 5. Change the switch board or control board.
Light works, but
blower is not
turning. 1. The blower cable is disconnected. 1. Check all wirings from the blower to be sure
all cables are connected properly.
2. The blower is defective, possibly seized. 2. Change the blower.
3. The thermally protected system detects if the
blower is too hot to operate and shuts the blower
down.
3. The blower will function properly after the
thermally protected system cool down.
4. The switch board or control board is defective. 4. Change defective part.
The unit is
vibrating. 1. The motor is not secure in place. 1. Tighten the motor in place.
2. Damaged blower wheel. 2. Replace the blower.
3. The hood is not secured in place. 3. Check the installation of the hood.
The unit is
whistling. 1. The fi lter is not in the correct position. 1. Adjust the fi lters until the whistling stops.
2. The duct pipe connections are not sealed or
connected properly.
2. Check the duct pipe connections to be sure all
connections are sealed properly.
The blower is
working, but the
lights are not. 1. Defective LED bulb. 1. Change the LED bulb.
2. The LED bulb wire is loose. 2. Check LED wire connections at the control
board and the LED light bulbs. Reconnect any
loose wires.
The speed levels
of the blower
sound the same. 1. Using the wrong size of ducting. 1. Change the ducting to at least 8” or higher.
2. ACT enabled blower CFM set to 290 or 440
CFM.
2. Noise level distinction between some speeds
may be minimal when ACT enabled blower is
set to 290 or 440 CFM.
The hood is
not venting out
properly. 1. The hood might be hanging too high from the
cook top.
1. Adjust the distance between the cook top and
the bottom of the hood within 26” and 34”
range.
2. The wind from the opened windows or opened
doors in the surrounding area are affecting the
ventilation of the hood.
2. Close all the windows and doors to eliminate
the outside wind fl ow.
3. Blockage in the duct opening or ductwork. 3. Remove all the blocking from the duct work or
duct opening.
4. The direction of duct opening is against the wind. 4. Adjust the duct opening direction.
5. Using the wrong size of ducting. 5. Change the ducting to at least 8” or higher for
the internal blower.
Mesh Filter is
vibrating. 1. Mesh fi lter is loose. 1. Make sure the metal clips in the handle are
not stuck. Or replace the mesh fi lter.
2. Filter spring clip is loose or broken. 2. Uninstall and reinstall fi lter, push up on fi lter
latch. Replace mesh fi lter if needed.