What are the specs for this Limit Switch?

The correct replacement for Goodman model AMES801205DXAA — 20162903 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 AMES801205DXAA — 20162903.

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 150°F Primary Limit Switch for AMES801205DXAA — 20162903

Name: OEM Goodman 150°F Primary Limit Switch for AMES801205DXAA — 20162903
Brand: Goodman
SKU: GOODMAN-4690
Price: 8.95 USD
Availability: InStock

SKU: GOODMAN-4690 Brand: Goodman

$8.95 $11.95

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Goodman 20162903 Primary Limit Switch (150°F)

The Goodman 20162903 is a genuine OEM primary high-temperature limit switch engineered for the Amana AMES801205DXAA 80% AFUE gas furnace and other compatible Goodman/Amana multi-position models. Mounted on the heat exchanger vestibule panel, this normally-closed thermal switch continuously monitors supply-air temperature and interrupts power to the gas valve if the furnace overheats — a critical safety component that protects the heat exchanger from cracking due to restricted airflow, a dirty filter, or a failed blower.

Specifications

Part number: 20162903 (OEM Goodman / Amana)
Type: Primary / main high-limit switch, normally closed
Trip point: opens at 150°F, auto-reset on cool-down
Mounting: snap-disc, panel/bracket mount
Equipment: gas furnace, 80% AFUE
Compatibility: AMES801205DXAA and related Goodman/Amana furnaces

OEM vs. Generic

The genuine OEM 20162903 is calibrated to the exact trip temperature specified for your furnace's heat exchanger, ensuring correct lockout behavior and preserving your equipment warranty. Aftermarket snap-discs are cheaper but often carry a different calibration or mounting footprint, which can cause nuisance trips or, worse, fail to protect the exchanger. For a life-safety limit control we recommend the OEM part.

Installation Difficulty

Rating: Easy (1/5). Replacement is a two-wire, single-screw job that most homeowners can complete in under 15 minutes. Turn off power at the furnace switch and breaker, photograph the wiring, transfer the two spade terminals to the new switch, and remount. If the old limit tripped, always diagnose the root cause (airflow restriction) before returning the furnace to service.

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 150°F Primary Limit ...

$8.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMES801205DXAA — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman AMES801205DXAA — 20162903. 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 AMES801205DXAA — 20162903?

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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