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
Thermal Zone
Central Air Conditioner

Model # CH48K-1S Official Thermal Zone 10 seer split-system heat pump

Here are the diagrams and repair parts for Official Thermal Zone CH48K-1S 10 seer split-system 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 30 parts  |
Cap Strap 258780
#18

10 seer split system heat pump diagram

Cap strap

Part #258780

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

Contactor 621662
#16

10 seer split system heat pump diagram

Contactor

Part #621662

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

Muffler 668710
#4

10 seer split system heat pump diagram

Muffler

Part #668710

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

Coil Guard (formed) D08785
#11

10 seer split system heat pump diagram

Coil guard (formed)

Part #D08785

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

Compressor Grommet (4) 668396
#28

10 seer split system heat pump diagram

Compressor grommet (4)

Part #668396

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

Fan Motor 621306
#22

10 seer split system heat pump diagram

Fan motor

Part #621306

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

Refigerant Valve (small) 663574
#7

10 seer split system heat pump diagram

Refigerant valve (small)

Part #663574

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

Service Valve 663621
#5

10 seer split system heat pump diagram

Service valve

Part #663621

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

Control Box Cover 374260Z
#27

10 seer split system heat pump diagram

Control box cover

Part #374260Z

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

Capacitor 620765
#17

10 seer split system heat pump diagram

Capacitor

Part #620765

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

Symptoms for upright freezers

Why does my freezer have a sheet of ice at the bottom?

Main causes: clogged or frozen defrost drain tube…

Read more

Repair guides for upright freezers

How to replace a freezer control panel

How to replace a freezer control panel

A freezer control panel that doesn’t show the temperature or respond when you press the buttons could be broken. This DI…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a freezer door switch

How to replace a freezer door switch

When the door switch fails, the freezer can’t detect that the door is closed. Follow the steps in this repair guide to r…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a freezer thermistor

How to replace a freezer thermistor

When the thermistor can’t sense the freezer temperature, the freezer is colder or warmer than the set temperature. Follo…

Read more
Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your central air conditioners

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