What are the specs for this Limit Switch?

The correct replacement for Goodman model AMEC800804BNAA — 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 AMEC800804BNAA — 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 AMEC800804BNAA — 20162904

Name: OEM Goodman Primary Limit Control for AMEC800804BNAA — 20162904
Brand: Goodman
SKU: GOODMAN-3866
Price: 35.95 USD
Availability: InStock

SKU: GOODMAN-3866 Brand: Goodman

$35.95 $46.95

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Goodman 20162904 Primary Limit Temperature Control

The Goodman/Amana 20162904 is the OEM primary high-limit temperature control for the AMEC800804BNAA gas furnace and compatible Goodman/Amana models. Mounted on the heat exchanger / plenum, this safety switch continuously monitors supply-air temperature and shuts off the burners if the furnace overheats — protecting the heat exchanger, blower, and your home from unsafe temperatures. A failed limit control is a common cause of short-cycling, no-heat lockouts, or a furnace that runs the blower but won't fire.

Specifications

Type: Primary high-limit temperature control (auto-reset)
Function: Overheat / high-temperature safety cutout
Fit: Goodman/Amana AMEC800804BNAA and compatible furnaces
Mounting: Heat exchanger / plenum bracket
OEM Part #: 20162904

OEM vs. Generic

The OEM 20162904 is calibrated to the exact trip and reset temperatures specified for this furnace, ensuring the burners cut out at the correct threshold. Generic limits with the wrong temperature rating can trip early (nuisance no-heat) or too late (a genuine safety risk). Because this is a code-mandated safety device, OEM calibration matters.

Installation Difficulty: Easy to Moderate

Rated Easy to Moderate. Disconnect power, remove the two mounting screws, transfer the wire terminals to the new switch, and reinstall. Confirm the sensing element seats in the correct airflow position. Verify heating operation and temperature rise after installation.

Compatibility: AMEC800804BNAA. Contact us with your model and serial number if you need fit confirmation.

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 AMEC800804BNAA — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman AMEC800804BNAA — 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 AMEC800804BNAA — 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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