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Carrier 48DU030040300 package unit Parts
Here are the diagrams and repair parts for Carrier 48DU030040300 package unit, as well as links to manuals and error code tables, if available.
By Schematic
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Browse Parts for 48DU030040300 Package Unit
Evap coil diagram
Pre.switch
Part #HK02ZA407
The manufacturer no longer makes this part, and there's no substitute part
Control box/control panel assy diagram
Plug Assembly
Part #HY07MP261
The manufacturer no longer makes this part, and there's no substitute part
Control Assembly
Part #48DU400005
The manufacturer no longer makes this part, and there's no substitute part
Inside view diagram
144,housing, Fan
Part #48DU500020
The manufacturer no longer makes this part, and there's no substitute part
Front view/rear view diagram
Nameplate
Part #312250-407
The manufacturer no longer makes this part, and there's no substitute part
Front view/rear view diagram
Coil,cond.
Part #50DU400155
The manufacturer no longer makes this part, and there's no substitute part
Inside view diagram
Strap,cap
Part #317739-301
The manufacturer no longer makes this part, and there's no substitute part
Evap coil diagram
Valve,serv
Part #EC39EZ065
The manufacturer no longer makes this part, and there's no substitute part
Front view/rear view diagram
Panel
Part #48GS500009
The manufacturer no longer makes this part, and there's no substitute part
Gas section diagram
Baffle
Part #48SS500608
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.
Thermostat problems, bad compressor/condenser fan capacitor, lack of refrigerant, failed compressor…
Dirty air filter, clogged condenser coils, low refrigerant charge, faulty compressor…
Thermostat problem, clogged air filter, burner failure…
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 fail…
Dirty flame sensor, failed flame sensor, damaged burner, bad high limit switch…
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.
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 sta…
Repair time and Difficulty
15 minutes or less
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…
Repair time and Difficulty
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 time and Difficulty
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.
Learn the reasons why you should consider replacing a gas furnace with an electric heat pump.…
Find out why the burner on your furnace isn't igniting.…
Learn about furnace repairs and how much they cost.…
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