Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Aprilaire
Humidifier

Model # 350 Official Aprilaire humidifier

Here are the diagrams and repair parts for Official Aprilaire 350 humidifier, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

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

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

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

Owner’s manual

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 31 parts  |
Wick Pad 35
#3

Model 350 diagram

Wick pad

Part #35

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

Valve Sadd 4001
#24

Model 350 diagram

Valve sadd

Part #4001

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

Humidistat 4258
#28

Model 350 diagram

Humidistat

Part #4258

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

Box-jnctn 4194
#18

Model 350 diagram

Box-jnctn

Part #4194

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

Orifice (blue) (144/ctn. 12-12pks.) 4232
#14

Model 350 diagram

Orifice (blue) (144/ctn. 12-12pks.)

Part #4232

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

Baffle 4185
#7

Model 350 diagram

Baffle

Part #4185

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

Nozzle 4184
#6

Model 350 diagram

Nozzle

Part #4184

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

Tubing And Plastic Barrel 4192
#16

Model 350 diagram

Tubing and plastic barrel

Part #4192

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

Bracket 4202
#27

Model 350 diagram

Bracket

Part #4202

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

Frame 4206
#1

Model 350 diagram

Frame

Part #4206

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

Symptoms for gas ranges

Why won't my range's gas burner spark or ignite?

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure…

Read more

Why isn't my range's gas burner heating properly?

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, control system failure, faulty t…

Read more

Repair guides for gas ranges

How to replace oven door hinges on a gas range

How to replace oven door hinges on a gas range

See how to replace the oven door hinges on a gas range yourself, in just 30 minutes.…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a range spark igniter switch

How to replace a range spark igniter switch

Follow these steps to replace the spark igniter switch—sometimes called a burner switch or spark switch—on a gas or dual…

Read more
Repair difficulty
Time required
 60 minutes or less
How to replace a range spark igniter electrode

How to replace a range spark igniter electrode

Learn how to replace the spark igniter electrode for the surface burners on a gas range or dual-fuel range.…

Read more
Repair difficulty
Time required
 45 minutes or less

Articles and videos for gas ranges

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

Get tips on completing essential holiday cleaning tasks to brighten your home.…

Read more
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.…

Read more
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.…

Read more

Parts & More