What are the specs for this Limit Switch?

The correct replacement for Goodman model AMES801005CXAA — 20162904 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 AMES801005CXAA — 20162904.

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 Primary Limit Control for AMES801005CXAA — 20162904

Name: OEM Goodman Primary Limit Control for AMES801005CXAA — 20162904
Brand: Goodman
SKU: GOODMAN-4680
Price: 35.95 USD
Availability: InStock

SKU: GOODMAN-4680 Brand: Goodman

$35.95 $47.95

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Goodman 20162904 Primary Limit Temperature Control

The 20162904 is the OEM primary high-limit temperature control used in the Amana/Goodman AMES801005CXAA 80% gas furnace. It is a factory safety device that continuously monitors the temperature inside the heat exchanger compartment. If airflow is restricted — a dirty filter, a failed blower, or a blocked return — and heat-exchanger temperatures climb past the trip point, this control opens the circuit to the gas valve and shuts the burners down before an over-temperature condition can occur.

Specifications

Function: Primary high-limit / manual-reset safety control
Fits: Amana / Goodman AMES801005CXAA and compatible 80% furnace platforms
Type: Snap-disc thermal limit
OEM Part Number: 20162904
Brand: Goodman / Amana factory OEM

OEM vs. Generic

The genuine OEM 20162904 is calibrated to the exact trip temperature engineered for this heat exchanger. Generic snap-discs may fit physically but can trip early (nuisance lockouts) or late (failing to protect the unit). Because this is a safety-critical part, we recommend the OEM control to keep the furnace within its listed operating envelope.

Installation

Difficulty: Easy (30 minutes). Two-wire replacement mounted with two screws. Always shut off gas and 120V power at the disconnect before servicing. Confirm the replacement matches the original trip rating stamped on the disc.

Compatible with the AMES801005CXAA furnace. If you are unsure of fitment, contact info@nationalhvacparts.com with your unit's model and serial number.

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 Primary Limit Contro...

$35.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMES801005CXAA — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman AMES801005CXAA — 20162904. 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 AMES801005CXAA — 20162904?

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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