What are the specs for this Limit Switch?

The correct replacement for Goodman model AMES921004CNAA — 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 AMES921004CNAA — 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 150F Primary Limit Switch for AMES921004CNAA — 20162903

Name: OEM Goodman 150F Primary Limit Switch for AMES921004CNAA — 20162903
Brand: Goodman
SKU: GOODMAN-4755
Price: 18.95 USD
Availability: InStock

SKU: GOODMAN-4755 Brand: Goodman

$18.95 $24.95

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Goodman 20162903 Primary Limit Switch (150F)

The Goodman 20162903 is a genuine OEM primary high-limit switch designed for AMES921004CNAA gas furnaces and compatible Goodman/Amana models. This normally-closed thermal safety control monitors heat-exchanger temperature and de-energizes the gas valve if the furnace overheats — protecting your equipment and home from unsafe operating conditions. A failed or nuisance-tripping limit switch is a common cause of a furnace that short-cycles, blows cold air, or locks out entirely.

Specifications

Trip temperature: 150°F (auto-reset)
Type: Primary high-limit safety switch
Configuration: Normally closed (opens on temperature rise)
Fitment: Goodman/Amana AMES921004CNAA and compatible furnaces
OEM Part Number: 20162903

OEM vs. Generic

Our OEM version is the exact factory-specified switch with the correct trip point and mounting geometry — the safest choice for a life-safety control. A generic equivalent offers a lower-cost alternative with matching electrical ratings, but we recommend OEM for any component that governs combustion safety.

Installation Difficulty

Easy (2/5) — Cut power at the disconnect, disconnect the two spade terminals, remove the mounting screws, and swap in the new switch. Typically a 10–15 minute repair. If 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 150F Primary Limit S...

$18.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMES921004CNAA — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman AMES921004CNAA — 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 AMES921004CNAA — 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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