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49-80569 Rev. 4 9
Save time and money! Review the charts on the following pages first and you may not need to call for service.
Problem Possible Causes What To Do
Fan does not operate when the On/
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A fuse may be blown or a circuit breaker
tripped.
Replace fuse or reset circuit breaker.
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The motor is probably overheating and
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the motor.
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on cycling continues, call for service. Visit
Monogram.com for available makeup air
solutions.
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the light reminds you to clean the metal
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with the switch.
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Fan does not operate when fan On/
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button is pressed
The blower connector is loose or not
plugged into its mating connector.
Disconnect power to the unit. Lift the lower duct
cover and look at the blower connector plug.
If the blower connector plug is loose, plug it in
securely. See the Installation Instructions for the
plug location and how to plug in the connector.
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Wrong size duct used in installation. This hood requires 6” ducting and a maximum
duct length of 100 equivalent feet to perform
optimally. Using smaller duct pipe or longer
equivalent lengths of duct pipe will cause
improper venting. Monogram service
technicians cannot correct this issue if installed
improperly.
Fan fails to circulate air or moves
air slower than normal and/or fan is
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Obstructions in duct work. Make sure nothing is blocking the vent. Make
sure your wall or roof cap has a blade or door.
Damper blade on wall or roof cap may
not be open.
Make sure damper swings freely. Damper blades
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happens. Adjust to original position.
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present) may be dirty.
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Cleaning.
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required for exhausting appliances to
operate to rating.
Check with local building codes, which may
require or strongly advise the use of makeup
air.
The hood controls are not operating
correctly
Control logic confused. Disconnect power to the hood by resetting
the circuit breaker. Wait 30 seconds to allow
controls to reset.
Early bulb failure
Replacing bulbs with bare hands. Replace bulbs while wearing gloves to keep skin
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Bulb wattage is too high. Replace with correct wattage.
TROUBLESHOOTING
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