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Broan
Downdraft Ventilation System

Model # 335 Official Broan blower

Here are the diagrams and repair parts for Official Broan 335 blower, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Model diagram and schematic

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Showing 10 of 21 parts  |
Cover 98009429
#1

Venting assy diagram

Cover

Part #98009429

Replaced by #S98009429

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Manufacturer substitution
This part replaces 98009429. Substitute parts can look different from the original.
$87.48
In Stock
Bushing 99400079
#12

Venting assy diagram

Bushing

Part #99400079

Replaced by #S99400079

?
Manufacturer substitution
This part replaces 99400079. Substitute parts can look different from the original.
This item is not returnable
$6.27
In Stock
Terminal Boot 99100530
#10

Venting assy diagram

Terminal boot

Part #99100530

Replaced by #S99100530

?
Manufacturer substitution
This part replaces 99100530. Substitute parts can look different from the original.
This item is not returnable
$5.38
In Stock
Range Hood Grounding Screw (green) 99150471
#19

Venting assy diagram

Range hood grounding screw (green)

Part #99150471

Replaced by #S99150471

?
Manufacturer substitution
This part replaces 99150471. Substitute parts can look different from the original.
This item is not returnable
$3.64
In Stock
Damper Flap 98009497
#4

Venting assy diagram

Damper flap

Part #98009497

Replaced by #S98009497

?
Manufacturer substitution
This part replaces 98009497. Substitute parts can look different from the original.
This item is not returnable
$13.97
In Stock
Spring 99140145
#5

Venting assy diagram

Spring

Part #99140145

Replaced by #S99140145

?
Manufacturer substitution
This part replaces 99140145. Substitute parts can look different from the original.
This item is not returnable
$25.71
In Stock
Grille Assembly 97015528
#6

Venting assy diagram

Grille assembly

Part #97015528

Replaced by #S97016229

?
Manufacturer substitution
This part replaces 97015528. Substitute parts can look different from the original.
$34.39
In Stock
Downdraft Vent Blower Fan Assembly 99080478
#7

Venting assy diagram

Downdraft vent blower fan assembly

Part #99080478

Replaced by #S99080478

?
Manufacturer substitution
This part replaces 99080478. Substitute parts can look different from the original.
$729.89 | 
$12.00 OFF Phone Price : $741.89
In Stock
Cord Clamp 99270461
#17

Venting assy diagram

Cord clamp

Part #99270461

Replaced by #S99270461

?
Manufacturer substitution
This part replaces 99270461. Substitute parts can look different from the original.
This item is not returnable
$4.00
In Stock
Trash Compactor Lock Nut 99260477
#18

Venting assy diagram

Trash compactor lock nut

Part #99260477

The manufacturer no longer makes this part, and there's no substitute part

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 lower down?

Main causes: electrical power failure, up/down activation switch problems, vent gear motor 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 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 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 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 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
How to replace a downdraft vent up/down button pad

How to replace a downdraft vent up/down button pad

The up/down button pad located on top of the air vent engages the activating switch when pushed to raise the air vent. R…

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Repair difficulty
Time required
 15 minutes or less
How to replace a downdraft vent fan control switch

How to replace a downdraft vent fan control switch

The fan control switch activates the blower motor and controls the fan speed. Replace the fan control switch if it's not…

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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 enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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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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