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49-80612-3 9
Before you
call for service
Save time and money! Review the charts on the following pages first and you may not need to
call for service.
Troubleshooting Tips
Stainless Steel Hood
Problem Possible Cause What To Do
Fan and lights do
not operate
This hood is equipped with a main
power disconnect switch. It is
located behind the grease filters
on the right side of the hood on the
control housing.
Flip this switch and press Fan/Light
buttons again.
A fuse may be blown or a circuit
breaker tripped.
Replace fuse or reset circuit breaker.
The blower connector is loose or not
plugged into its mating connector.
Disconnect power to the unit. Locate
blower and cable coming from it. Follow
cable until you find the connector. Make
sure each blower connector is securely
plugged, one into the other.
Fan keeps going off
and on
The motor is probably overheating
and turning itself off. This can be
harmful to the motor.
Check to be sure the filter is clean. If off
and on cycling continues, call for service.
Loud or abnormal
airflow noise
Wrong size duct used in installation. This hood requires 8” 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 making
loud or abnormal
airflow noise
Make sure nothing is blocking the vent,
including bird & other nests or fallen
pieces of dry wall.
Damper blade in hood exhaust outlet
or at wall/roof cap may be stuck.
Make sure all damper blades open freely.
Make sure installer has used the correct
size duct, not exceeded the recommend
equivalent length of ducting and all duct
pieces are properly connected and sealed.
Non-rigid duct work is prohibited in
these applications.
If used, look for kinks or other restrictions.
Metal grease filters and/or charcoal
filters (if present) may be dirty.
Clean the metal grease filter and replace
charcoal filter (if present). See Care and
Cleaning instructions.
Sufficient makeup (replacement) air
is required for exhausting appliances
to operate to rating.
Check with local building codes, which
may require or strongly advise the use
of makeup air. Visit Monogram.com for
available makeup air solutions.
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-life bulb failure Replacing bulbs with bare hands. Replace bulbs while wearing gloves to
keep skin oils off bulbs.
Bulb wattage is too high. Replace with correct wattage.
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