What are the specs for this Wiring Harness?

The correct replacement for Goodman model APH1536M41AD — 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 APH1536M41AD — 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.

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Goodman

OEM Goodman 16-Pin Wiring Harness for APH1536M41AD — B1378700

Name: OEM Goodman 16-Pin Wiring Harness for APH1536M41AD — B1378700
Brand: Goodman
SKU: GOODMAN-15589
Price: 18.95 USD
Availability: InStock

SKU: GOODMAN-15589 Brand: Goodman

$18.95 $24.95

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Goodman B1378700 16-Pin Wiring Harness

The B1378700 is a genuine OEM 16-pin wiring harness for the Goodman/Amana APH1536M41AD package heat pump. This pre-terminated harness carries low-voltage control and sensor signals between the integrated control board and the unit's components, using a keyed 16-position connector for a fast, error-free plug-in connection. It is the correct replacement when insulation is heat-damaged, terminals are corroded or backed out, or rodents have chewed the original loom.

Specifications

Part number: B1378700
Type: Low-voltage control wiring harness
Connector: Keyed 16-pin (16-position) plug
Function: Control board to component interconnect
Fits: Goodman/Amana APH1536M41AD heat pump
Pre-terminated, plug-and-play assembly

OEM vs. Generic

The OEM harness uses the exact connector housing, pin-out, wire gauge, and lead lengths designed for this control board — so it seats fully and routes cleanly with no splicing. Building a harness from generic wire and connectors risks mis-pinned circuits, loose terminals, and intermittent faults. The genuine assembly eliminates guesswork and protects the control board.

Installation Difficulty

Easy (2/5). Disconnect power, unplug the old harness, note routing, and snap the new connector into place. No splicing required. Confirm the keyed plug is fully latched before restoring power.

Genuine Goodman quality. For fit verification, email info@nationalhvacparts.com.

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...

$18.95

Frequently Asked Questions

Does this Wiring Harness fit my Goodman APH1536M41AD — B1378700?

Yes. This is the factory-specified OEM wiring harness for the Goodman APH1536M41AD — 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 APH1536M41AD — 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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