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Carrier
Heating & Cooling Combined Unit

Model # 38BK012321 Official Carrier package unit

Here are the diagrams and repair parts for Official Carrier 38BK012321 package unit, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 41 parts  |
Pre.switch HK02ZA226
#NI

Cabinet parts diagram

Pre.switch

Part #HK02ZA226

$392.82
In Stock
Cpctr Strap P281-0025
#22

Cabinet parts diagram

Cpctr strap

Part #P281-0025

$9.17
In Stock
Overload HN68GP153
#NI

Cabinet parts diagram

Overload

Part #HN68GP153

$37.76
In Stock
Orifice 38GA5A12020
#6

Cabinet parts diagram

Orifice

Part #38GA5A12020

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

Control Panel 38GA5A2109DOZ
#20

Cabinet parts diagram

Control panel

Part #38GA5A2109DOZ

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

Grommet WS911L4902DA
#NI

Cabinet parts diagram

Grommet

Part #WS911L4902DA

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

Paint PH680003
#NI

Cabinet parts diagram

Paint

Part #PH680003

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

Bracket 38GA5A50070OZ
#9

Cabinet parts diagram

Bracket

Part #38GA5A50070OZ

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

Basepan 38YB6A50040
#4

Cabinet parts diagram

Basepan

Part #38YB6A50040

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

Revr.valve PVV02FC0020
#49

Cabinet parts diagram

Revr.valve

Part #PVV02FC0020

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

Most common symptoms to help you fix your heating & cooling combined units

Choose a symptom to see related heating and air conditioning system repairs.

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Why is my furnace not blowing hot enough?

Thermostat problem, clogged air filter, burner failure…

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Why isn’t my air conditioner cooling well?

Dirty air filter, clogged condenser coils, low refrigerant charge, faulty compressor…

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Why isn’t my air conditioner cooling?

Thermostat problems, bad compressor/condenser fan capacitor, lack of refrigerant, failed compressor…

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Why won't my air conditioner turn on?

Main causes: errant thermostat settings, lack of electrical power, clogged drain line, wiring failure, control failure.…

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Why won't my furnace turn on?

Main causes: Errant thermostat settings, lack of power, bad interlock switches, lack of exhaust ventilation, wiring fail…

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Why won’t my furnace burners won’t stay lit?

Dirty flame sensor, failed flame sensor, damaged burner, bad high limit switch…

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Most common repair guides to help fix your heating & cooling combined units

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

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How to unclog the air conditioner drain line

The condensate drain line for your central air conditioner can clog with mold and mildew. Water will back up and start d…

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 15 minutes or less
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How to replace a heating and air conditioning system thermostat

How to replace a heating and air conditioning system thermostat

The control thermostat for your HVAC system can stop working. This repair guide shows how to replace it.…

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Time required
 30 minutes or less

Effective articles & videos to help repair your heating & cooling combined units

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

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