What are the specs for this Wiring Harness?

The correct replacement for Goodman model AEPF426016AA — B1378700 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 AEPF426016AA — B1378700.

What symptoms indicate I need a new wiring harness?

Common symptoms that indicate you need a new wiring harness include unusual noises, intermittent operation, complete failure to operate, or visible damage. For specific diagnostic guidance, visit nationalhvacparts.com/pages/hvac-diagnostic.

Is this wiring harness 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.

Goodman

OEM Goodman 16-Pin Blower Wiring Harness for AEPF426016AA — B1378700

Name: OEM Goodman 16-Pin Blower Wiring Harness for AEPF426016AA — B1378700
Brand: Goodman
SKU: B1378700-GEN
Price: 23.95 USD
Availability: InStock

SKU: B1378700-GEN Brand: Goodman

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The Goodman B1378700 16-Pin Wiring Harness is the genuine OEM control harness for AEPF426016AA air handlers. This multi-conductor assembly carries control and power signals between the air handler control board, the ECM/PSC blower motor, and the unit's low-voltage circuits. Melted connectors, brittle insulation, or intermittent blower operation are classic signs of a failing harness — and a direct-fit OEM replacement eliminates the guesswork of splicing individual wires.

Specifications

Part Number: B1378700
Connector: 16-pin plug
Part Type: Blower / Control Wiring Harness
Fits Model: AEPF426016AA air handler
Brand: Goodman (Amana / Janitrol compatible)
Wire: Color-coded, factory-terminated conductors

OEM vs. Generic

This genuine Goodman OEM harness arrives pre-terminated with the correct 16-pin plug and pin-out, so it seats into the board the first time. Generic harnesses require manual crimping and pin mapping, which risks miswiring the blower motor and damaging the control board. OEM is plug-and-play.

Install Difficulty

Easy to Moderate — unplug the old harness and route the new one along the same path; 20–30 minutes for most techs. Photograph connections before removal and cut power at the breaker first.

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 16-Pin Blower Wiring...

$23.95

Frequently Asked Questions

Does this Wiring Harness fit my Goodman AEPF426016AA — B1378700?

Yes. This is the factory-specified OEM wiring harness for the Goodman AEPF426016AA — B1378700. 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 wiring harness on my Goodman AEPF426016AA — B1378700?

Refer to your equipment service manual for model-specific steps. General approach: turn off power, photograph connections, remove old part, install new part, restore power and test. For gas components, hire a licensed technician. Email info@nationalhvacparts.com for guidance.

What symptoms mean I need a new wiring harness?

Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.

Is this wiring harness 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 wiring harness?

OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.

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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