Thermal Zone
Central Air Conditioner

Model # CH48M-1S Official Thermal Zone 12 seer split-system heat pump

Here are the diagrams and repair parts for Official Thermal Zone CH48M-1S 12 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 29 parts  |

Cap Strap 258780
#18

12 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

12 seer split system heat pump diagram

Contactor

Part #621662

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

Capacitor 621466
#17

12 seer split system heat pump diagram

Capacitor

Part #621466

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

Outdoor Coil (formed) 499535
#12

12 seer split system heat pump diagram

Outdoor coil (formed)

Part #499535

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

Fan Blade 667212
#23

12 seer split system heat pump diagram

Fan blade

Part #667212

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

Service Valve 663621
#5

12 seer split system heat pump diagram

Service valve

Part #663621

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

Control Board 496540
#14

12 seer split system heat pump diagram

Control board

Part #496540

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

Muffler 668710
#4

12 seer split system heat pump diagram

Muffler

Part #668710

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

Compressor Bolt 600284
#29

12 seer split system heat pump diagram

Compressor bolt

Part #600284

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

Accumulator 668854
#8

12 seer split system heat pump diagram

Accumulator

Part #668854

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

Repair guides for side-by-side refrigerators

How to replace a foamed-in-place door gasket in a side-by-side refrigerator

How to replace a foamed-in-place door gasket in a side-by-side refrigerator

The door gasket seals the gap around the door to keep the cold air in and the warm air out. Replace a worn or damaged do…

Repair difficulty
Time required
 30 minutes or less
How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty
Time required
 15 minutes or less
How to replace a defrost sensor in a side-by-side refrigerator

How to replace a defrost sensor in a side-by-side refrigerator

If frost is building up in the freezer of your side-by-side refrigerator, the defrost sensor could be at fault. You can …

Repair difficulty
Time required
 45 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.…