What are the specs for this Limit Switch?

The correct replacement for Goodman model AMEC800804BXAB — 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 AMEC800804BXAB — 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 Temperature Control for AMEC800804BXAB — 20162904

Name: OEM Goodman Primary Limit Temperature Control for AMEC800804BXAB — 20162904
Brand: Goodman
SKU: GOODMAN-3891
Price: 35.95 USD
Availability: InStock

SKU: GOODMAN-3891 Brand: Goodman

$35.95 $46.95

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Texas CMBL #19328542014

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The Goodman 20162904 Primary Limit Temperature Control is a genuine OEM high-limit safety switch built for the AMEC800804BXAB gas furnace and compatible Goodman/Amana units. Mounted on the heat exchanger or blower housing, this thermally activated control continuously monitors supply-air temperature and shuts off the burners if the furnace overheats — protecting the heat exchanger from cracking and preventing unsafe operation. A failed primary limit is a common cause of furnaces that short-cycle, trip on high temperature, or won't fire at all.

Specifications

OEM Part Number: 20162904
Function: Primary high-limit temperature safety cutout
Fits Model: AMEC800804BXAB furnace
Brand: Goodman / Amana
Type: Auto-reset thermal limit switch
Category: Limit switch / safety control

OEM vs. Generic

This limit control is calibrated to your furnace's exact trip temperature. A generic switch with the wrong setpoint can allow the heat exchanger to overheat or nuisance-trip on every heating cycle. The genuine Goodman 20162904 guarantees the factory-set cutout temperature and correct mounting footprint for a true drop-in fit.

Installation Difficulty

Easy to Moderate — Power off the furnace, remove two mounting screws, transfer the wire leads, and secure the new limit. Most homeowners with basic tools can complete this in under 20 minutes; if unsure, consult a licensed HVAC technician.

Restore safe, reliable heating with the authentic Goodman 20162904 primary limit control.

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 Temper...

$35.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMEC800804BXAB — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman AMEC800804BXAB — 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 AMEC800804BXAB — 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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