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
Biotech
Air Purifier

Model # 750 Official Biotech electronic air cleaner

Here are the diagrams and repair parts for Official Biotech 750 electronic air cleaner, 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.

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 40 parts  |
Filter Cover PCC0704
#1

Functional replacement parts diagram

Filter cover

Part #PCC0704

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

Grommet RGR0003
#33

Functional replacement parts diagram

Grommet

Part #RGR0003

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

Screw FSS0603
Screw

Part #FSS0603

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

Thermal Switch EXX0004
#31

Functional replacement parts diagram

Thermal switch

Part #EXX0004

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

Green Led CDL0001
#11

Functional replacement parts diagram

Green led

Part #CDL0001

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

Connector ECS0005
#40

Functional replacement parts diagram

Connector

Part #ECS0005

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

Transformer ETS0002
#19

Functional replacement parts diagram

Transformer

Part #ETS0002

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

Rivet FRP0005
#28

Functional replacement parts diagram

Rivet

Part #FRP0005

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

Outlet Grille PCC0711
#25

Functional replacement parts diagram

Outlet grille

Part #PCC0711

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

Cooling Fan JFC0001
#9

Functional replacement parts diagram

Cooling fan

Part #JFC0001

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

Symptoms for gas chainsaws

Choose a symptom to see related chainsaw repairs.

View all

Why won't my chainsaw start?

Main causes: stale gasoline, cracked fuel lines, dirty carburetor, damaged spark plug, worn piston rings…

Read more

Why does my chainsaw run roughly?

Main causes: bad gas, engine needs tune up, cracked fuel lines, dirty carburetor…

Read more

What should I do if my chainsaw leaks gas?

Main causes: cracked fuel lines, leaky carburetor seals, damaged fuel tank cap, cracked fuel tank…

Read more

Repair guides for gas chainsaws

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

View all
How to rebuild a chainsaw carburetor

How to rebuild a chainsaw carburetor

If your chainsaw isn't running well, a dirty carburetor could be the problem. You can take it apart, clean it and rebuil…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace chainsaw fuel lines

How to replace chainsaw fuel lines

The fuel line on a chainsaw becomes brittle over time and can crack. Replacing it doesn't require a lot of DYI experienc…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a chainsaw carburetor

How to replace a chainsaw carburetor

If the engine won't start even though there's fuel in the chainsaw, the carburetor could be the problem. Sometimes, it's…

Read more
Repair difficulty
Time required
 15 minutes or less

Articles and videos for gas chainsaws

Use the advice and tips in these articles and videos to get the most out of your chainsaw.

View all
Top 10 electric lawn and garden tools for 2023

Top 10 electric lawn and garden tools for 2023

Learn about the top 10 must-have electric lawn & garden tools for 2023…

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