Carrier 38CK-036---340 Capacitor Size & Contactor Specs
Factory service specifications for Carrier 38CK-036---340 Split-System AC Condenser.
The Carrier 38CK-036---340 3.0 Ton (36,000 BTU) Split-System AC Condenser uses a 45/5 µF @ 370V/440V round (cylinder) dual-run capacitor (OEM P291-4553RS, universal replacement Supco CR45+5X440R).
Electrical Component & Replacement Matrix
Verified OEM parts and drop-in universal aftermarket cross-references
| Component | Electrical Spec | OEM Part # | Universal Replacement | Order Online |
|---|---|---|---|---|
| Dual-Run CapacitorCompressor + Fan | 45/5 µF @ 370V/440VRound (Cylinder) | P291-4553RS | Supco CR45+5X440R | Prime Check |
4-Step Carrier 38CK-036---340 Electrical Replacement Workflow
Always follow OSHA electrical lockout/tagout principles before opening condenser access panels. Capacitors store lethal voltage even with power disconnected.
Locate the outdoor disconnect box mounted on the wall adjacent to your condenser. Pull the handle or remove the pullout block entirely. Switch off the dedicated double-pole AC breaker in your main electrical panel.
Using an insulated screwdriver (holding ONLY the rubberized handle), short the metal shaft between the HERM terminal and COMMON, then between FAN and COMMON to release any residual microfarad charge.
Photograph the wiring first. Transfer wires one-by-one to your replacement capacitor:• HERM (3 prongs): Compressor lead
• FAN (2 prongs): Fan motor lead
• COMMON (4 prongs): Line voltage & contactor lead
Examine the contactor copper points for black carbon pitting or welded contacts. Inspect the plastic housing for dead ants (attracted to 24V magnetic fields). If points are pitted or scored, replace the contactor simultaneously.
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