What are the specs for this Limit Switch?

The correct replacement for Goodman model AMSS921004CNAA — 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 AMSS921004CNAA — 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.

IMAGE COMING SOON

Goodman

OEM Goodman 150°F Primary Limit Switch for AMSS921004CNAA — 20162903

Name: OEM Goodman 150°F Primary Limit Switch for AMSS921004CNAA — 20162903
Brand: Goodman
SKU: GOODMAN-7480
Price: 8.95 USD
Availability: InStock

SKU: GOODMAN-7480 Brand: Goodman

$8.95 $11.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Goodman 20162903 Primary Limit Switch (150°F)

The Goodman 20162903 primary limit switch is a genuine OEM high-temperature safety control for your AMSS921004CNAA gas furnace. Mounted on the heat exchanger or burner assembly, this normally-closed thermal switch opens the control circuit and shuts down the burners if supply-air temperature climbs past its 150°F trip point, protecting the heat exchanger and blower housing from overheating. A worn or open limit switch is a common cause of a furnace that fires briefly and then short-cycles on high limit.

Specifications

OEM Part Number: 20162903
Type: Primary high-limit safety switch, normally closed (auto-reset)
Trip Temperature: 150°F
Brand: Goodman / Amana
Application: Gas furnace heat exchanger / plenum
Compatible Model: AMSS921004CNAA

OEM vs. Generic

This is a genuine Goodman OEM limit switch, calibrated to the exact 150°F trip point specified for your model. Generic aftermarket limits are cheaper but frequently ship with a different trip temperature or mounting bracket, leading to nuisance trips or unsafe operation. For a safety-critical control, we recommend the OEM part.

Installation Difficulty

Easy (1/5). Two mounting screws and two spade terminals — typically a 10–15 minute repair. Always disconnect power at the furnace switch and breaker before servicing.

Fits Goodman and Amana furnaces including model AMSS921004CNAA. Contact info@nationalhvacparts.com if you need help confirming fitment.

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 AMSS921004CNAA — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman AMSS921004CNAA — 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 AMSS921004CNAA — 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.

Menu