What are the specs for this Limit Switch?

The correct replacement for Goodman model AMS80403AXAA — 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 AMS80403AXAA — 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 Primary Limit Switch for AMS80403AXAA — 20162901

Name: OEM Goodman Primary Limit Switch for AMS80403AXAA — 20162901
Brand: Goodman
SKU: GOODMAN-6698
Price: 26.95 USD
Availability: InStock

SKU: GOODMAN-6698 Brand: Goodman

$26.95 $35.95

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The Goodman 20162901 Primary Limit Switch is a genuine OEM high-temperature safety control for the AMS80403AXAA gas furnace and related Goodman/Amana models. Mounted on the heat exchanger bulkhead, it opens the gas/ignition circuit when supply-air temperature exceeds a safe threshold — typically from restricted airflow, a dirty filter, or a failing blower — and auto-resets once temperatures normalize.

Specifications

Reset Type: Automatic (snap-disc)
Function: Primary high-limit temperature cutout
Terminals: 1/4 in. quick-connect spades
Mounting: Bulkhead flange, factory temperature setpoint
Application: 80% AFUE gas furnaces

OEM vs. Generic

The OEM 20162901 ships with Goodman's exact temperature calibration and flange geometry for correct heat-exchanger protection and warranty compliance. Our Generic equivalent matches the trip temperature, insertion depth, and mounting pattern at a lower price for out-of-warranty repairs.

Installation Difficulty

Easy (2/5). A 10–15 minute job. Power down the furnace, remove the two mounting screws, transfer the spade connectors, and remount with the sensing element seated correctly in the airflow. If the limit tripped, correct any airflow restriction (filter, blower, ductwork) before restarting.

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 Primary Limit Switch...

$26.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMS80403AXAA — 20162901?

Yes. This is the factory-specified OEM limit switch for the Goodman AMS80403AXAA — 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 AMS80403AXAA — 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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