What are the specs for this Wiring Harness?

The correct replacement for Goodman model AEPF426016CA — 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 AEPF426016CA — 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 Wiring Harness for AEPF426016CA — B1378700

Name: OEM Goodman 16-Pin Wiring Harness for AEPF426016CA — 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 the AEPF426016CA air handler. It carries the low-voltage control and speed-tap signals between the integrated control board and the variable-speed ECM blower motor. Melted, corroded, or chafed pins cause intermittent blower operation, error codes, or a no-start condition — a fresh OEM harness restores a clean, reliable connection.

Specifications

Part Number: B1378700
Connector: 16-Pin
Part Type: Blower / ECM Motor Wiring Harness
Equipment: Air Handler
Fits Model: AEPF426016CA
Brand: Goodman (OEM)

OEM vs. Generic

This genuine Goodman OEM harness uses the exact 16-pin connector, wire gauge, and pinout the AEPF426016CA control board and ECM motor expect. Generic or hand-spliced harnesses risk pin mismatches and resistance faults that confuse the motor's control logic. The OEM harness plugs in keyed and locked for a fault-free signal path.

Installation Difficulty

Easy (2/5) — Unplug the old harness at both ends and route the replacement along the same path. Disconnect power first and photograph the routing before removal. Keyed connectors prevent reversed installation. Plan 15–20 minutes.

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 Wiring Harnes...

$23.95

Frequently Asked Questions

Does this Wiring Harness fit my Goodman AEPF426016CA — B1378700?

Yes. This is the factory-specified OEM wiring harness for the Goodman AEPF426016CA — 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 AEPF426016CA — 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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