What are the specs for this Limit Switch?

The correct replacement for Goodman model AMS80604BXAA — 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 AMS80604BXAA — 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 AMS80604BXAA — 20162904

Name: OEM Goodman Primary Limit Control for AMS80604BXAA — 20162904
Brand: Goodman
SKU: GOODMAN-6823
Price: 54.95 USD
Availability: InStock

SKU: GOODMAN-6823 Brand: Goodman

$54.95 $72.95

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The Goodman 20162904 Primary Limit Temperature Control is a genuine OEM high-limit safety for AMS80604BXAA 80% AFUE furnaces and compatible Goodman/Amana models. Mounted on the heat exchanger bulkhead, the primary limit monitors supply-air temperature and opens the gas/ignition circuit if the furnace overheats — typically caused by restricted airflow such as a dirty filter, blocked returns, or a failing blower. This auto-reset control closes again once temperatures return to normal, protecting the heat exchanger from thermal damage.

Specifications

Type: Primary high-limit temperature control
Contacts: Normally closed (opens on high temperature)
Reset: Automatic
Mounting: OEM bulkhead / snap-disc bracket fit
OEM Part Number: 20162904
Fits: Goodman/Amana AMS80604BXAA and related furnaces

OEM vs. Generic

The OEM Goodman limit control is set to the exact trip temperature and insertion depth engineered for this cabinet, so it protects the furnace without shutting down prematurely. Generic snap-discs may share a rating but differ in probe length and calibration. Because this is a primary safety device, the OEM part is the recommended choice.

Install Difficulty

Easy. The control is retained by two screws and quick-connect terminals. Shut off power and gas, photograph the wiring, and install the new control in the same orientation and depth. Estimated time: 15–25 minutes. If the limit trips repeatedly, correct the airflow restriction rather than replacing the part alone.

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...

$54.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMS80604BXAA — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman AMS80604BXAA — 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 AMS80604BXAA — 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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