What MFD capacitor do I need for my Goodman AC?

The correct replacement for Goodman model ASH130361A — B94577200 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 ASH130361A — B94577200.

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 45/5 MFD 370V Run Capacitor for ASH130361A — B94577200

Name: OEM Goodman 45/5 MFD 370V Run Capacitor for ASH130361A — B94577200
Brand: Goodman
SKU: GOODMAN-16009
Price: 14.95 USD
Availability: InStock

SKU: GOODMAN-16009 Brand: Goodman

$14.95 $19.95

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The Goodman B94577200 Dual Run Capacitor is a genuine OEM 45/5 MFD, 370V component for the Goodman ASH130361A heat pump and compatible condensing units. This dual-rated capacitor provides the phase shift needed to start and run both the compressor (45 MFD side) and the condenser fan motor (5 MFD side). A weak or bulging capacitor is the single most common cause of a heat pump that hums but won't start, trips on overload, or runs a fan without the compressor engaging. Restoring full microfarad rating brings the unit back to reliable operation.

Specifications

OEM Part Number: B94577200
Capacitance: 45/5 MFD (µF) dual
Voltage Rating: 370V (compatible up to 440V circuits)
Brand: Goodman
Equipment Type: Heat Pump
Primary Fit: ASH130361A
Type: Dual round run capacitor

OEM vs. Generic

The genuine Goodman B94577200 is matched to the exact microfarad and voltage ratings your motors require. Generic capacitors are widely available, but off-spec MFD or lower voltage ratings shorten life and can stress the compressor. OEM guarantees the precise 45/5 MFD 370V rating for optimal starts.

Install Difficulty

Easy to Moderate — With power off, discharge the capacitor before touching terminals, photograph the HERM/FAN/C wiring, then swap and secure with the mounting strap. A common DIY-friendly repair for those comfortable respecting stored-charge safety. When in doubt, call a technician.

Get your heat pump running again with the OEM Goodman B94577200 45/5 MFD capacitor. In stock, ships today.

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 45/5 MFD 370V Run Ca...

$14.95

Frequently Asked Questions

Does this Capacitor fit my Goodman ASH130361A — B94577200?

Yes. This is the factory-specified OEM capacitor for the Goodman ASH130361A — B94577200. 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 ASH130361A — B94577200?

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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