What are the specs for this Limit Switch?

The correct replacement for Goodman model AMSS920805CNAA — 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 AMSS920805CNAA — 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 Amana Primary Limit Switch 150F for AMSS920805CNAA — 20162903

Name: OEM Goodman Amana Primary Limit Switch 150F for AMSS920805CNAA — 20162903
Brand: Goodman
SKU: GOODMAN-7469
Price: 22.95 USD
Availability: InStock

SKU: GOODMAN-7469 Brand: Goodman

$22.95 $29.95

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Goodman 20162903 Primary Limit Switch (150°F)

Genuine OEM Goodman/Amana 20162903 primary high-limit switch with a 150°F trip point, the main over-temperature safety control on the AMSS920805CNAA gas furnace. Mounted on the heat exchanger/supply-air path, this normally-closed snap-disc switch opens the control circuit and shuts down the burners if supply temperatures climb too high — typically from a dirty filter, blocked ductwork, or blower failure — then auto-resets once the furnace cools.

Part Number: 20162903
Type: Primary high-limit snap-disc switch
Trip Temperature: 150°F (auto-reset)
Action: Normally closed, opens on over-temperature
Fits Model: AMSS920805CNAA (Furnace)
Brand: Goodman / Amana OEM

OEM vs. Generic

The OEM 20162903 is factory-set to the precise 150°F trip point and disc diameter this furnace requires. A mismatched generic switch can cause repeated nuisance shutdowns or fail to protect the heat exchanger. For the primary safety limit, the genuine calibrated part is strongly recommended.

Install Difficulty

Moderate (2/5) — Disconnect power, remove the mounting screws, and swap the two spade terminals. 10–15 minutes; confirm the 150°F rating stamped on the disc matches the original before installing.

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 Amana Primary Limit ...

$22.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMSS920805CNAA — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman AMSS920805CNAA — 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 AMSS920805CNAA — 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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