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
Fedders
Central Air Conditioner

Model # ST905LSL1 Official Fedders air conditioner

Here are the diagrams and repair parts for Official Fedders ST905LSL1 air conditioner, 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 129 parts  |
Screw WZ04X0342
#194

Replacement parts diagram

Screw

Part #WZ04X0342

$9.49
In Stock
Installation Instructions 31-6132

#NI

All parts diagram

Installation instructions

Part #31-6132

This item is not returnable
$2.99
In Stock
Thermostat WJ28X0510
#35

Replacement parts diagram

Thermostat

Part #WJ28X0510

$84.99
In Stock
Screw WZ04X0392
#989

Replacement parts diagram

Screw

Part #WZ04X0392

This item is not returnable
$3.99
In Stock
Technical Sheet 31-6133

#NI

All parts diagram

Technical sheet

Part #31-6133

This item is not returnable
$2.29
In Stock
Owner's Manual 31-6146

#NI

All parts diagram

Owner's manual

Part #31-6146

This item is not returnable
$2.29
In Stock
Technical Sheet 31-6128

#NI

All parts diagram

Technical sheet

Part #31-6128

This item is not returnable
$2.29
In Stock
Owner's Manual 31-6130

#NI

All parts diagram

Owner's manual

Part #31-6130

This item is not returnable
$2.29
In Stock
Technical Sheet 31-6134

#NI

All parts diagram

Technical sheet

Part #31-6134

This item is not returnable
$2.29
In Stock
Screw WZ04X0120
#992

Replacement parts diagram

Screw

Part #WZ04X0120

This item is not returnable
$5.99
In Stock

Symptoms for gas pressure washers

Choose a symptom to see related pressure washer repairs.

View all

Why won't my pressure washer mix in the detergent?

Main causes: using a high-pressure spray tip when applying detergent, clogged siphon tube, chemical injection system fai…

Read more

Why is smoke coming from the pressure washer's exhaust?

Main causes: overfilling engine with oil, improper fuel/air mixture, choke system problems, dirty carburetor, engine nee…

Read more

Why won't the pressure washer starter rope retract?

Main causes: broken recoil spring, damaged recoil starter…

Read more

Why does my pressure washer's engine lose power?

Main causes: dirty air filter, stale fuel, clogged or dirty carburetor, bad unloader valve…

Read more

Why is the spray from my pressure washer weak?

Main causes: insufficient water supply, clogged water inlet screen, clogged pressure hose, faulty pump check valves, stu…

Read more

Why doesn't my pressure washer recoil starter work?

Main causes: damaged recoil starter, oil inside cylinder, locked up engine piston…

Read more

Why does my pressure washer spray too hard?

Main causes: faulty unloader valve, bad pressure regulator…

Read more

Why won't my pressure washer engine start?

Main causes: stale fuel, gummed up carburetor, engine needs tune up, throttle and choke controls need adjustment, bad re…

Read more

Why does water spray out of my pressure washer's pressure relief valve?

Main causes: pump running for more than 5 minutes when the spray wand isn't being used, faulty pressure relief valve, ba…

Read more

Repair guides for gas pressure washers

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

View all
How to install a pressure washer check valve kit

How to install a pressure washer check valve kit

Air in the inlet water supply can damage the check valves. If the pump won’t build up pressure due to damaged check valv…

Read more
Repair difficulty
Time required
 120 minutes or less
How to install a pressure washer O-ring kit

How to install a pressure washer O-ring kit

O-rings seal fittings on the pressure washer pump. Damaged seals allow water to leak from the pump. Follow these steps t…

Read more
Repair difficulty
Time required
 45 minutes or less
How to install a pressure washer chemical injection kit

How to install a pressure washer chemical injection kit

The chemical injection valve draws detergent into the pump. If it’s not drawing detergent, use a repair kit to replace t…

Read more
Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your central air conditioners

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

View all
Maintaining your air conditioner

Maintaining your air conditioner

Learn how to maintain your central air conditioner to keep it running smoothly all summer long.…

Read more
How to prevent the 2 most common AC failures from ruining your summer

How to prevent the 2 most common AC failures from ruining your summer

Get tips to help keep your central AC running all summer long…

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