As an Amazon Associate I earn from qualifying purchases.Updated: March 31, 2026
The Capacitor in your Lennox S10XV-36B-230-1A is crucial for starting and running the motor that powers your system's fan and compressor. Like any electrical component, it degrades over time and needs periodic replacement to maintain optimal performance. Delaying replacement can lead to reduced cooling efficiency, increased energy consumption, or even motor failure.
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Function: The Capacitor stores electrical energy and releases it quickly to provide the initial boost needed to start the motor.
Signs it needs replacing: Humming noise from the unit without the fan starting, overheating, inconsistent performance, or a completely non-functioning system.
OEM vs aftermarket: OEM (Original Equipment Manufacturer) Capacitors are made by Lennox and guarantee perfect compatibility. Aftermarket alternatives can be cheaper but ensure they explicitly state compatibility with your S10XV-36B-230-1A model before purchase.
Installation: Installing a Capacitor typically involves disconnecting power, removing the old Capacitor, and connecting the new one. However, always consult a qualified technician if you're unfamiliar with electrical work.
Replacement schedule: every 5 years
Compatibility warning: always verify part number matches your exact model before ordering
Pros & Cons
Pros
✓ Restores device to original performance without buying a new unit
✓ Significantly cheaper than a full device replacement
✓ Multiple options available from OEM and aftermarket sellers
Cons
✗ OEM parts cost more than third-party alternatives
✗ Wrong part number will not fit — model verification is essential
Common Use Cases
Scheduled maintenance on the every 5 years replacement cycle
Performance restoration after noticing reduced output or efficiency
Preventive replacement before a worn part causes secondary damage
Who Should Buy This
This Capacitor replacement is for owners of Lennox S10XV-36B-230-1A units experiencing performance issues and who want to extend the life of their HVAC system.
Not ideal for: If your Lennox unit has extensive damage or is very old, replacing the entire system may be more cost-effective in the long run.
Good to Know Before Buying
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Always confirm your exact model number (S10XV-36B-230-1A) before ordering. Part numbers vary between model variants and production years. Check the label on your device or original documentation to be sure.
Frequently Asked Questions
What is the part number for the Lennox S10XV-36B-230-1A Capacitor?
The part number is 23-5002-01. Always verify this matches your exact model (S10XV-36B-230-1A) before ordering, as similar models may use different parts.
How often should I replace the Capacitor on my Lennox S10XV-36B-230-1A?
every 5 years
Will aftermarket Capacitor replacements work in my Lennox S10XV-36B-230-1A?
Third-party parts are widely available and often cheaper than OEM. Look for listings that specifically mention compatibility with model S10XV-36B-230-1A and check buyer reviews for fit confirmation before purchasing.
Prices change frequently. See the latest deal on Amazon.