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Broan
Downdraft Ventilation System

Model # ILB11 Official Broan inline blower

Here are the diagrams and repair parts for Official Broan ILB11 inline blower, as well as links to manuals and error code tables, if available.

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Installation guide

Model diagram and schematic

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Showing 10 of 33 parts  |
Screw 10-2 93150487
#12

Main asy diagram

Screw 10-2

Part #93150487

This item is not returnable
$4.44
In Stock
Appliance Lock Nut 93260447
#20

Main asy diagram

Appliance lock nut

Part #93260447

This item is not returnable
$3.36
In Stock
Blower Screw 97014785
#18

Main asy diagram

Blower screw

Part #97014785

Replaced by #S97014785

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Manufacturer substitution
This part replaces 97014785. Substitute parts can look different from the original.
$111.67
In Stock
Damper Fla 97014853
#1

Main asy diagram

Damper fla

Part #97014853

Replaced by #S97014853

?
Manufacturer substitution
This part replaces 97014853. Substitute parts can look different from the original.
$15.17
In Stock
Trash Compactor Lock Nut 99260477
#16

Main asy diagram

Trash compactor lock nut

Part #99260477

Replaced by #S99260477

?
Manufacturer substitution
This part replaces 99260477. Substitute parts can look different from the original.
This item is not returnable
$3.64
In Stock
Duct Connector 98009520
#3

Main asy diagram

Duct connector

Part #98009520

Replaced by #S98009520

?
Manufacturer substitution
This part replaces 98009520. Substitute parts can look different from the original.
$9.10
In Stock
Motor Bracket 97014788
#15

Main asy diagram

Motor bracket

Part #97014788

Replaced by #S97014788

?
Manufacturer substitution
This part replaces 97014788. Substitute parts can look different from the original.
$45.10
In Stock
Bushing 99400035
#14

Main asy diagram

Bushing

Part #99400035

Replaced by #S99400035

?
Manufacturer substitution
This part replaces 99400035. Substitute parts can look different from the original.
This item is not returnable
$6.66
In Stock
Grille Nut 99420470
#10

Main asy diagram

Grille nut

Part #99420470

Replaced by #S99420470

?
Manufacturer substitution
This part replaces 99420470. Substitute parts can look different from the original.
This item is not returnable
$6.66
In Stock
Housing Pa 98009531
#11

Main asy diagram

Housing pa

Part #98009531

Replaced by #S98009531

?
Manufacturer substitution
This part replaces 98009531. Substitute parts can look different from the original.
$35.59
In Stock

Most common symptoms to help you fix your downdraft ventilation systems

Choose a symptom to see related downdraft vent repairs.

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Why won't my downdraft vent rise up?

Main causes: lack of electrical power, up/down activation switch failure, bad vent gear motor…

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Why won't my downdraft vent lower down?

Main causes: electrical power failure, up/down activation switch problems, vent gear motor failure…

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Why does the downdraft vent raise and lower continuously?

Main causes: problems with the vent limit switches, up/down activation switch failure…

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Why won't the fan on my downdraft vent blow air?

Main causes: fan control switch failure, bad blower fan motor, broken blower wheel, wiring failure…

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Why doesn't the downdraft vent fan pull much air?

Main causes: clogged grease filters, air duct problems, fan motor failure, broken blower wheel…

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Most common repair guides to help fix your downdraft ventilation systems

These step-by-step repair guides will help you safely fix what’s broken on your downdraft vent.

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How to replace a downdraft vent up/down switch

How to replace a downdraft vent up/down switch

The up/down switch starts the gear motor to raise and lower the air vent. Replace the up/down switch if defective.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a downdraft vent blower motor

How to replace a downdraft vent blower motor

The blower motor spins the fan blade that removes smoke and steam from the cooktop area. Replace the blower motor if it …

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a downdraft vent gear motor

How to replace a downdraft vent gear motor

The gear motor raises and lowers the air vent when you push the activating switch. Replace the gear motor if defective.…

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Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your downdraft ventilation systems

Use the advice and tips in these articles to get the most out of your downdraft vent.

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How to repair broken or damaged wires video

How to repair broken or damaged wires video

Learn how to repair broken, frayed or damaged wires in your appliances.…

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How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…

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Troubleshooting tips for a rectractable downdraft vent

Troubleshooting tips for a rectractable downdraft vent

See what to check if you are having a problem with a retractable downdraft vent.…

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