What are the specs for this Limit Switch?

The correct replacement for Goodman model AMES920403ANAA — 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 AMES920403ANAA — 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 AMES920403ANAA — 20162903

Name: OEM Goodman 150°F Primary Limit Switch for AMES920403ANAA — 20162903
Brand: Goodman
SKU: GOODMAN-4700
Price: 8.95 USD
Availability: InStock

SKU: GOODMAN-4700 Brand: Goodman

$8.95 $11.95

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The Goodman 20162903 Primary Limit Switch is a genuine OEM high-limit safety control engineered for AMES920403ANAA gas furnaces and compatible Goodman/Amana models. This normally-closed thermal switch monitors heat-exchanger temperature and opens the burner circuit if the furnace overheats, protecting the equipment and your home from unsafe operating conditions. A failed or nuisance-tripping limit switch is one of the most common causes of a furnace that fires briefly then shuts down.

Specifications

Trip temperature: 150°F (auto-reset)
Type: Primary / main high-limit switch
Function: Normally closed, opens on overtemperature
Fits: AMES920403ANAA and compatible Goodman/Amana furnaces
OEM Part Number: 20162903

OEM vs. Generic

This is the genuine OEM component, matched to the exact trip point and mounting footprint your furnace's control logic expects. Aftermarket generics may use a different reset behavior or trip tolerance, leading to short-cycling or premature lockouts. For a critical safety control, OEM is the recommended choice.

Installation Difficulty

Easy (DIY-friendly). Typically two mounting screws and two spade connectors. Always cut power at the breaker before servicing. If the switch trips repeatedly after replacement, inspect airflow and the heat exchanger before running the unit.

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 AMES920403ANAA — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman AMES920403ANAA — 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 AMES920403ANAA — 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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