What MFD capacitor do I need for my Lennox AC?

The correct replacement for Lennox model OEM Lennox Dual Run Capacitor 45+5 MFD 440V Round — Y9293 is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Lennox equipment which lists the model number OEM Lennox Dual Run Capacitor 45+5 MFD 440V Round — Y9293.

My AC hums but will not start. What part do I need?

An AC that hums but will not start is the classic symptom of a failed capacitor. The capacitor provides the electrical boost needed to start the compressor and fan motors. When it fails, you hear the hum of the motor trying to start but it cannot overcome inertia. Other symptoms include the fan spinning slowly, the AC cycling on and off rapidly, or a visibly swollen or leaking capacitor. Replacement cost: $15 to $80 for the part, DIY in 30 minutes.

Lennox

OEM Lennox Dual Run Capacitor 45+5 MFD 440V Round — Y9293

Name: OEM Lennox Dual Run Capacitor 45+5 MFD 440V Round — Y9293
Brand: Lennox
SKU: LNX-Y9293
Price: 18.95 USD
Availability: InStock

SKU: LNX-Y9293 Brand: Lennox

$18.95 $24.95

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The genuine OEM Lennox Y9293 is a USA-made dual run capacitor rated at 45+5 MFD, 440V, in a round can format. It delivers the electrical charge that both the compressor and condenser fan motor rely on to start and run, creating the phase shift these motors need for smooth, efficient operation. The American-made construction of the Y9293 reflects the build quality and consistency Lennox specifies for its equipment.

Common Failure Symptoms

Compressor or fan motor buzzes but fails to start
Reduced cooling or the fan running at low speed
System short-cycling or tripping the breaker
Bulged top or leaking oil from the capacitor

A degraded capacitor forces motors to draw excess current, leading to overheating and eventual burnout. Replacing the Y9293 restores proper capacitance and protects the costlier motor and compressor components.

Why OEM Matters

Genuine Lennox capacitors meet exact voltage and MFD specifications your system was engineered for. The OEM Y9293 ensures a precise fit and reliable, long-lasting performance while safeguarding your Lennox warranty — protection generic parts simply don't offer.

Shipping Information

Orders placed before 3PM CST ship same business day
Standard delivery: 2-5 business days
Express shipping available at checkout
Free shipping on orders over $75
Tracking number emailed upon shipment

Return Policy

30-day returns on unused parts in original packaging
Electrical parts (capacitors, contactors, control boards) are final sale once installed
Email info@nationalhvacparts.com to initiate a return
Refunds processed within 5-7 business days

OEM Lennox Dual Run Capacitor 45...

$18.95

Frequently Asked Questions

Does this Capacitor fit my Lennox OEM Lennox Dual Run Capacitor 45+5 MFD 440V Round — Y9293?

Yes. This is the factory-specified OEM capacitor for the Lennox OEM Lennox Dual Run Capacitor 45+5 MFD 440V Round — Y9293. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.

How do I replace the capacitor on my Lennox OEM Lennox Dual Run Capacitor 45+5 MFD 440V Round — Y9293?

Difficulty: Easy (20–30 min)
Step 1: Turn off power at breaker. Step 2: Open condensing unit panel. Step 3: Photograph the old capacitor wiring (Common/Herm/Fan). Step 4: Discharge old capacitor with insulated screwdriver. Step 5: Disconnect and remove old capacitor. Step 6: Mount new capacitor, reconnect wires to matching terminals. Step 7: Close panel, restore power, test. Tools: screwdriver, needle-nose pliers.

My AC hums but won’t start. What part do I need?

An AC that hums but won’t start is the classic symptom of a failed capacitor. The capacitor provides the electrical boost to start the compressor. When it fails, you hear humming but the motor can’t overcome inertia. Other symptoms: fan spinning slowly, AC cycling on/off rapidly, or a visibly swollen capacitor. Fix: replace capacitor ($15–$80 DIY, 30 min).

Is this capacitor compatible with Bryant or Payne too?

Many Lennox parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.

Should I use OEM or aftermarket for my Lennox capacitor?

OEM strongly recommended. OEM capacitors have ±6% MFD tolerance vs aftermarket ±10%. The looser tolerance causes motor winding stress, higher temps, and shorter compressor life. Price difference is only $10–$20 — OEM is the clear value choice.

How fast does National HVAC Parts ship?

Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.