17
TROUBLESHOOTING PROCEDURES FOR TRAPEZE
Issue
Cause
What to do
After installation,
the unit doesn’t
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1. The power source is not turned ON.
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power is ON.
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is not connecting properly.
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connected properly.
3. The switch board and control board wirings are
disconnected.
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board and control board are connected
properly.
4. The switch board or control board is defective.
4. Change the switch board or control board.
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blower is not
turning.
1. Wire harness from external or internal blower
might be disconnected.
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control board box
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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.
The unit is
vibrating.
1. The blower is not secure in place.
1. Tighten the blower in place.
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2. Change the blower.
3. The hood is not secured in place.
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The unit is
whistling.
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2. The duct pipe connections are not sealed or
connected properly.
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connections are sealed properly.
The blower is
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lights are not.
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2. Defective LED bulb.
2. Change the LED bulb.
The hood is
not venting out
properly.
1. The hood might be hanging to high from the
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the bottom of the hood within 26” and 36”
range.
2. The wind from the opened windows or opened
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ventilation of the hood.
2. Close all the windows and doors to eliminate
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duct opening.
4. There are too many turns within the ducting.
4. Limit number of turns and/or increase duct
size.
5. Using the wrong size of ducting.
5. Change the ducting to at least 6” or higher
for the internal blower and 8” or higher for the
external blower.
Filter is vibrating.
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After hood has
been installed
for a period of
time, it stopped
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1. Control board needs to be reset.
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2. Defective control board.
2. Replace control board.
Tr
oubleshooting
