What are the specs for this Limit Switch?

The correct replacement for Goodman model AMEC800803BXAA — 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 AMEC800803BXAA — 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 AMEC800803BXAA — 20162904

Name: OEM Goodman Primary Limit Control for AMEC800803BXAA — 20162904
Brand: Goodman
SKU: GOODMAN-3846
Price: 44.95 USD
Availability: InStock

SKU: GOODMAN-3846 Brand: Goodman

$44.95 $59.95

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The Goodman 20162904 Primary Limit Temperature Control is the OEM high-limit safety switch for the AMEC800803BXAA furnace. Mounted on the heat-exchanger bulkhead, it monitors supply-air temperature and shuts off the gas valve if the furnace overheats due to a dirty filter, blocked ductwork, or a failed blower. Replacing a nuisance-tripping or open limit with the correct OEM part restores reliable heat and keeps the safety chain intact.

Specifications

Type: Primary auto-reset high-limit control
Function: Opens gas circuit on over-temperature
Mounting: Factory bracket / bulkhead location
Fits: AMEC800803BXAA and related Goodman/Amana furnaces
OEM Part #: 20162904

OEM vs. Generic

Limit switches are calibrated to a specific cut-out temperature matched to the furnace's heat exchanger. A generic switch with the wrong trip point can either short-cycle the furnace or fail to protect the heat exchanger. This OEM Goodman limit control carries the factory temperature rating and drop-in mounting, so it protects exactly as designed and keeps the warranty valid.

Installation Difficulty

Moderate (30–40 min). Disconnect power, remove the two mounting screws, transfer the wire leads to the new control, and reinstall. Always confirm the root cause of an over-temperature trip (airflow, filter, blower) before returning the unit to service.

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...

$44.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMEC800803BXAA — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman AMEC800803BXAA — 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 AMEC800803BXAA — 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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