Whirlpool
Central Air Conditioner

Model # ALF20040 Official Whirlpool air conditioner heat pump

Here are the diagrams and repair parts for Official Whirlpool ALF20040 air conditioner heat pump, 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 178 parts  |

Valve Kit 978025
#53S

Airflow and control diagram

Valve kit

Part #978025

Replaced by #WP978025

?
Manufacturer substitution
This part replaces 978025. Substitute parts can look different from the original.
$29.51
17% OFF Phone Price : $35.51
In Stock
Valve Kit 978026
#53T

Airflow and control diagram

Valve kit

Part #978026

Replaced by #978026

?
Manufacturer substitution
This part replaces 978026. Substitute parts can look different from the original.
$34.19
15% OFF Phone Price : $40.19
In Stock
Capacitor 470168
#53B

Airflow and control diagram

Capacitor

Part #470168

Replaced by #212643

?
Manufacturer substitution
This part replaces 470168. Substitute parts can look different from the original.
This item is not returnable
$50.09
11% OFF Phone Price : $56.09
In Stock
Valve Kit 978030
#53X

Airflow and control diagram

Valve kit

Part #978030

Replaced by #978030

?
Manufacturer substitution
This part replaces 978030. Substitute parts can look different from the original.
$40.49
13% OFF Phone Price : $46.49
In Stock
Screw 488017
Screw

Part #488017

Replaced by #WP965173

?
Manufacturer substitution
This part replaces 488017. Substitute parts can look different from the original.
This item is not returnable
In Stock
Seal 997267
#45C

Airflow and control diagram

Seal

Part #997267

Replaced by #WP854334

?
Manufacturer substitution
This part replaces 997267. Substitute parts can look different from the original.
$9.99
9% OFF Phone Price : $10.99
In Stock
Screw 487869
#46

Unit diagram

Screw

Part #487869

Replaced by #WP965173

?
Manufacturer substitution
This part replaces 487869. Substitute parts can look different from the original.
This item is not returnable
In Stock
Screw, 8 X 1 488480
Screw, 8 x 1

Part #488480

Replaced by #WP489069

?
Manufacturer substitution
This part replaces 488480. Substitute parts can look different from the original.
This item is not returnable
$4.39
19% OFF Phone Price : $5.39
In Stock
Bend 997669
#3

Unit diagram

Bend

Part #997669

Replaced by #WP855199

?
Manufacturer substitution
This part replaces 997669. Substitute parts can look different from the original.
This item is not returnable
In Stock
Nut 486197
#47

Unit diagram

Nut

Part #486197

Replaced by #488660

?
Manufacturer substitution
This part replaces 486197. Substitute parts can look different from the original.
$16.79
11% OFF Phone Price : $18.79
In Stock

Repair guides for rear-tine tillers

How to replace a tiller drive belt

How to replace a tiller drive belt

The drive belt connects the engine to the transmission, which drives the tines and wheels. If the drive belt is worn an…

Repair difficulty
Time required
 15 minutes or less
How to replace the tines on a rear-tine tiller

How to replace the tines on a rear-tine tiller

Badly worn tines cut through the soil less effectively. If the tines are bent, dull or worn, follow these steps to repla…

Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your central air conditioners

Maintaining your air conditioner

Maintaining your air conditioner

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

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…

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.…