16
Troubleshooting
TROUBLESHOOTING PROCEDURES FOR MH108
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 switch board and control board wirings are
disconnected.
3. Make sure the wirings between the switch
board and control board are connected
properly.
4. The switch board or control board is defective.
4. Change the switch board or control board.
Light works, but
blower is not
turning.
1. The blower wire is not connected.
1. Make sure the blower wire is plugged into the
molex connector.
2. Blower molex plug pin is not making contact.
2. Disconnect the blower molex plug, check pins
inside plug to see if pin is pushed inside the
plug too far. Reseat pin if needed.
3. The blower is defective, possibly seized.
3. Change the blower.
4. The thermally protected system detects if the
blower is too hot to operate and shuts the blower
down.
4. The blower will function properly after the
thermally protected system cool down.
5. Damaged capacitor.
5. Change the capacitor.
6. The switch board or control board is defective.
6. Change defective part.
The unit is
vibrating.
1. The blower is not secured in place.
1. Tighten the blower 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.
Only one or two
fan speeds work.
1. The installer may have adjusted the maximum
CFM of the hood to meet local codes.
1. Refer to page 12 to verify the CFM.
The blower is
working, but the
lights are not.
1. The LED strip plug is disconnected.
1. Connect the LED strip plug.
2. Defective LED strip.
2. Change the LED strip.
The hood is
not venting out
properly.
1. The hood might be hanging to high from the
cook top.
1. Adjust the distance between the cook top and
the bottom of the hood within 24” 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 flow.
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 6” or higher.
Mesh Filter is
vibrating.
1. Mesh filter is loose.
1. Change the mesh filter.
Summary of Contents for MH10836BS
Page 1: ...2018 SEP MH10836BS MH10842BS MODEL ...
Page 2: ......
