What are the specs for this Limit Switch?

The correct replacement for Goodman model AMEC800804BNAB — 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 AMEC800804BNAB — 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 AMEC800804BNAB — 20162904

Name: OEM Goodman Primary Limit Temperature Control for AMEC800804BNAB — 20162904
Brand: Goodman
SKU: GOODMAN-3876
Price: 48.95 USD
Availability: InStock

SKU: GOODMAN-3876 Brand: Goodman

$48.95 $64.95

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The Goodman 20162904 Primary Limit Temperature Control is a genuine OEM safety switch for the Amana/Goodman AMEC800804BNAB gas furnace. This high-limit control continuously monitors the temperature in the heat exchanger/plenum and shuts off the burners if the furnace overheats — protecting the heat exchanger from cracking and preventing a fire hazard. If your furnace short-cycles, trips on high limit, or fails to fire, a faulty primary limit is a common cause.

Specifications

OEM Part Number: 20162904
Function: Primary high-limit temperature safety control
Type: Automatic-reset snap-disc limit switch
Fits Model: AMEC800804BNAB (Goodman/Amana furnace)
Equipment: Gas Furnace

OEM vs. Generic

The genuine OEM 20162904 is calibrated to the exact open/close temperature and mounting footprint specified for this furnace. Because this is a life-safety device, we strongly recommend OEM — a generic limit with a different trip temperature can allow dangerous overheating or cause nuisance shutdowns. Generic snap-disc alternatives exist at lower cost but must match temperature rating and bracket dimensions precisely; when in doubt, use OEM.

Installation Difficulty

Easy to Moderate. Typically a two-wire, two-screw replacement once the burner compartment is opened. Cut power at the disconnect first, note wire orientation, and confirm the temperature rating stamped on the disc matches the original. Restore power and verify normal burner cycling after install.

Designed for the AMEC800804BNAB and compatible Goodman/Amana furnaces. Confirm your model and part number before purchasing.

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...

$48.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMEC800804BNAB — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman AMEC800804BNAB — 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 AMEC800804BNAB — 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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