OEM Lennox Start Capacitor — 63A06

The Lennox 63A06 start capacitor provides the powerful jolt of energy a motor needs to overcome inertia and spin up at the beginning of each cycle. It stores and releases a burst of current to the start winding, giving compressors and motors the extra starting torque required to get moving quickly and cleanly. This is a genuine OEM component matched to the exact microfarad rating and voltage your Lennox equipment specifies.

Common failure symptoms include a motor or compressor that hums but struggles or fails to start, hard starting and slow spin-up, frequent tripped breakers, clicking from the contactor, and a bulged, leaking, or swollen capacitor case. Capacitors weaken gradually with heat and age, so performance often degrades before an outright failure.

Why OEM matters: Start capacitors must supply a precise capacitance value — too little and the motor won't start, too much and you risk winding damage. The genuine 63A06 guarantees the correct rating, voltage tolerance, and terminal layout for your Lennox unit, ensuring reliable starts and protecting the motor windings from the stress of a weak or mismatched capacitor. Choosing OEM avoids the guesswork and premature motor failures that come with generic replacements.