What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH80403AXBA — 20162901 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 AMH80403AXBA — 20162901.

What symptoms indicate I need a new limit switch?

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

Is this limit switch 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 L250 Primary Limit Switch for AMH80403AXBA — 20162901

Name: OEM Goodman L250 Primary Limit Switch for AMH80403AXBA — 20162901
Brand: Goodman
SKU: GOODMAN-4965
Price: 26.95 USD
Availability: InStock

SKU: GOODMAN-4965 Brand: Goodman

$26.95 $35.95

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The Goodman 20162901 Primary Limit Switch is a genuine OEM safety control designed for the Amana/Goodman AMH80403AXBA 80% gas furnace and compatible model families. This normally-closed thermal cutout continuously monitors heat-exchanger and plenum temperature, cutting power to the gas valve and igniter if the furnace overheats due to restricted airflow, a dirty filter, or a failed blower. A properly functioning primary limit switch is essential for safe operation and prevents nuisance lockouts and heat-exchanger damage.

Specifications

Part type: Primary high-limit switch (auto-reset)
OEM Part Number: 20162901
Fits: Goodman/Amana AMH80403AXBA and related 80% furnaces
Function: Normally-closed thermal safety cutout
Mounting: Direct furnace vestibule / heat-exchanger mount
Brand: Goodman (Amana equipment)

OEM vs. Generic

This is a genuine OEM 20162901 switch calibrated to the exact factory trip temperature for your furnace, ensuring correct safety response. Generic aftermarket limits may use a different set point, which can cause premature tripping or fail to protect the heat exchanger. For a critical safety component, OEM is strongly recommended.

Installation Difficulty

Easy (2/5) — Typically two mounting screws and two spade connectors. Always shut off power and gas before servicing. If you are unsure, consult a licensed HVAC technician.

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 L250 Primary Limit S...

$26.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH80403AXBA — 20162901?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH80403AXBA — 20162901. 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 limit switch on my Goodman AMH80403AXBA — 20162901?

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 limit switch?

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

Is this limit switch 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 limit switch?

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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