What MFD capacitor do I need for my Goodman AC?

The correct replacement for Goodman model SSX140181BA — CAP050300440RSS 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 Goodman equipment which lists the model number SSX140181BA — CAP050300440RSS.

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.

Is this capacitor compatible with Bryant or Payne systems too?

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

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Goodman

OEM Goodman 30/5 MFD 440V Dual Run Capacitor for SSX140181BA — CAP050300440RSS

Name: OEM Goodman 30/5 MFD 440V Dual Run Capacitor for SSX140181BA — CAP050300440RSS
Brand: Goodman
SKU: GOODMAN-848
Price: 17.95 USD
Availability: InStock

SKU: GOODMAN-848 Brand: Goodman

$17.95 $24.23

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Goodman CAP050300440RSS 30/5 MFD 440V Dual Run Capacitor

The CAP050300440RSS is the genuine OEM dual run capacitor for the Goodman SSX140181BA condensing unit. This round dual-section capacitor provides the constant phase shift that keeps both the compressor (HERM, 30 MFD) and the condenser fan motor (FAN, 5 MFD) running efficiently. A weak or bulging capacitor is the single most common cause of an outdoor unit that hums but won't start, trips the breaker, or cuts out on hot days — replacing it is the fastest, lowest-cost fix.

Specifications

Capacitance: 30/5 MFD (µF) dual run
Voltage rating: 440 VAC (also serves 370V applications)
Shape: Round, 3-terminal (HERM / FAN / C)
OEM part number: CAP050300440RSS
Fits model: Goodman SSX140181BA condensing unit
Tolerance: ±6%, 10,000 AFC rated

OEM vs. Generic

The genuine Goodman capacitor is rated 440V for greater thermal headroom and longer life than budget 370V-only units. Quality generics with matching 30/5 MFD values at 440V will function, but cheaper aftermarket parts often drift out of tolerance early. The OEM part guarantees correct microfarad values and reliable starts.

Installation

Difficulty: Moderate (2/5). Cut power at the disconnect and discharge the old capacitor before touching terminals. Photograph the wiring, transfer HERM, FAN, and C leads to matching terminals, secure the strap, and restore power. A licensed technician is recommended for anyone unfamiliar with capacitor safety.

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 Goodman 30/5 MFD 440V Dual R...

$17.95

Frequently Asked Questions

Does this Capacitor fit my Goodman SSX140181BA — CAP050300440RSS?

Yes. This is the factory-specified OEM capacitor for the Goodman SSX140181BA — CAP050300440RSS. 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 Goodman SSX140181BA — CAP050300440RSS?

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 Goodman 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 Goodman 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.

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