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General| Brand | Carrier |
|---|---|
| Model | 48DJD |
| Category | Air Conditioner |
| Language | English |
General guidance for owner-performed maintenance and safety precautions.
Instructions for checking and replacing air filters for optimal unit performance.
Inspect heat exchanger, fans, coils, drain, electrical, and refrigerant systems.
Visually inspect combustion area and vent system for efficiency and safety.
Inspect flue products, combustion/ventilation air passages, and gas piping.
Check condenser/evaporator coils, condensate drain pan, and blower motor housing.
Inspect supply/return air ducts, unit base, and casing for issues.
Verify electrical connections, refrigerant charge, and overall unit operation.
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