Carrier
Heating & Cooling Combined Unit

Model #48CEN030040300 Official Carrier package unit

Here are the diagrams and repair parts for Carrier 48CEN030040300 package unit, 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”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

    Showing 10 of 112 parts

    Cover Assembly#NI

    Cabinet parts Diagram

    Cover assembly

    Part #48CE400048
    In Stock
    $101.49
    Hood Cap#35

    Cabinet parts Diagram

    Hood cap

    Part #48GS500121
    In Stock
    $23.18
    Temp Swtch#NI

    Cabinet parts Diagram

    Temp swtch

    Part #HH18HA211
    In Stock
    $21.95
    Top Assembly#NI

    Cabinet parts Diagram

    Top assembly

    Part #48GS400058
    In Stock
    $95.99
    Insulation#NI

    Cabinet parts Diagram

    Insulation

    Part #48GS500062
    In Stock
    $78.99
    Channel#NI

    Cabinet parts Diagram

    Channel

    Part #48CE500012
    In Stock
    $92.99
    Central Air Conditioner Condenser Fan Motor#91

    Cabinet parts Diagram

    In Stock
    $316.32
    Propeller#90

    Cabinet parts Diagram

    Propeller

    Part #LA01RA031
    In Stock
    $130.10
    Switch#NI

    Cabinet parts Diagram

    Switch

    Part #HH18HA454
    In Stock
    $77.28
    Panel#21

    Cabinet parts Diagram

    Panel

    Part #48GS500011
    In Stock
    $62.99

    Symptoms common to all heating & cooling combined units

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

    Dirty air filter, clogged condenser coils, low refrigerant charge, faulty compressor
    Thermostat problem, clogged air filter, burner failure
    Dirty flame sensor, failed flame sensor, damaged burner, bad high limit switch
    Thermostat problems, bad compressor/condenser fan capacitor, lack of refrigerant, failed compressor
    Main causes: errant thermostat settings, lack of electrical power, clogged drain line, wiring failure, control failure.
    Main causes: Errant thermostat settings, lack of power, bad interlock switches, lack of exhaust ventilation, wiring failures.

    Repair guides common to all heating & cooling combined units

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

    March 16, 2022
    By Lyle Weischwill
    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 dripping below the inside air conditioner unit. Follow the steps in this guide to unclog the drain pipe.

    Repair difficulty
    Time required
     15 minutes or less
    March 16, 2022
    By Lyle Weischwill
    How to replace the furnace flame sensor

    The flame sensor detects when furnace burner flames are lit. You may need to replace the flame sensor if flames only stay on for a few seconds.

    Repair difficulty
    Time required
     15 minutes or less
    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.

    Repair difficulty
    Time required
     30 minutes or less

    Articles and videos common to all heating & cooling combined units

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

    August 30, 2022

    How to enjoy all the online benefits we offer on our Sears PartsDirect website

    By Lyle Weischwill

    Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.

    August 5, 2022

    Introducing new technical repair content that we’re developing for the Sears Technical Institute

    By Lyle Weischwill

    Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.

    February 22, 2022

    Can a furnace be repaired?

    By Lyle Weischwill

    Learn about furnace repairs and how much they cost.