What are the specs for this Wiring Harness?

The correct replacement for Goodman model APH1636H41BA — 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 APH1636H41BA — 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 APH1636H41BA — B1378700

Name: OEM Goodman 16-Pin Wiring Harness for APH1636H41BA — B1378700
Brand: Goodman
SKU: GOODMAN-15832
Price: 18.95 USD
Availability: InStock

SKU: GOODMAN-15832 Brand: Goodman

$18.95 $24.95

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Goodman B1378700 16-Pin Wiring Harness

The Goodman B1378700 is a genuine OEM 16-pin wiring harness built for the APH1636H41BA heat pump. This pre-terminated harness carries the main control signals between the integrated control board and the unit's components, with a keyed 16-position connector that plugs in one way for a fast, error-free connection. Replacing a corroded, melted, or chewed harness restores clean signal paths and eliminates intermittent faults caused by bad pins.

Specifications

OEM Part Number: B1378700
Fits Model: APH1636H41BA (Heat Pump)
Connector: 16-pin keyed plug
Conductors: Color-coded, factory-crimped terminals
Brand: Goodman (genuine OEM)

OEM vs. Generic

The OEM harness arrives with the correct pin-out, wire gauge, and connector body already matched to the APH1636H41BA board — no splicing or terminal crimping. Building a generic harness by hand invites pin-out mistakes and loose crimps that cause nuisance lockouts. The factory part plugs straight in.

Installation Difficulty

Rating: Moderate. Power off at the disconnect, note routing, unplug the old harness, and clip in the replacement. No special tools, but take care to seat the connector fully and match the original routing away from hot or moving parts.

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 APH1636H41BA — B1378700?

Yes. This is the factory-specified OEM wiring harness for the Goodman APH1636H41BA — 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 APH1636H41BA — 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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