Diagnose the symptom
A failed-looking part may be the result of another system problem. Describe the symptom and any fault message so the system can be assessed before deciding what needs replacing.
Homeowner service guide
SUPCO HVAC parts guide.
Have a question about a SUPCO component in your HVAC system? Start with the equipment model and the part information. Compatibility and the cause of the problem need to be established before choosing a replacement.
Know your equipment
SUPCO replacement parts and homeowner resources
SUPCO offers replacement components and service products across electrical, motor, and condensate categories. Its catalog includes both application-specific and broader replacement products. A component must be selected using the required electrical ratings, dimensions, and equipment application, rather than brand familiarity alone. A hard-start device is not a substitute for diagnosing why a compressor will not start.
Share the equipment model and any existing part number recorded on an invoice. Leave electrical covers closed and let the service assessment establish which component, if any, needs replacement.
Parts to identify: HVAC capacitors, hard-start devices, contactors, relays, motors, and condensate products.
Manufacturer resources
Use the official information for your model.
Check the equipment model, serial number, installation date, and registration documents before reviewing coverage. A manufacturer link does not establish that a repair, replacement part, or labor charge is covered. Confirm the applicable terms for your equipment.
For manufacturer support, use the company contact resource below. Have your equipment or component model, serial number, purchase or installation date, and proof of purchase ready. Coverage and claims procedures depend on the applicable product terms.
Heating and cooling help for homeowners