What are the specs for this Limit Switch?

The correct replacement for Goodman model AMEC800803BXAB — 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 AMEC800803BXAB — 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.

IMAGE COMING SOON

Goodman

OEM Goodman Primary Limit Temperature Control for AMEC800803BXAB — 20162904

Name: OEM Goodman Primary Limit Temperature Control for AMEC800803BXAB — 20162904
Brand: Goodman
SKU: GOODMAN-3856
Price: 35.95 USD
Availability: InStock

SKU: GOODMAN-3856 Brand: Goodman

$35.95 $46.99

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Goodman 20162904 Primary Limit Temperature Control

The Goodman 20162904 primary limit temperature control is the main high-limit safety switch for the Amana/Goodman AMEC800803BXAB gas furnace. Mounted on the heat exchanger or blower deck, it constantly monitors supply-air temperature and shuts off the gas valve if the furnace overheats — protecting the heat exchanger and preventing a fire hazard when airflow is restricted by a dirty filter, blocked ductwork, or a failed blower. A furnace that fires briefly then shuts down, or that short-cycles on heat, is often signaling a faulty primary limit.

Specifications

OEM Part Number: 20162904
Type: Primary high-limit temperature control (auto-reset)
Function: Opens gas valve circuit on over-temperature
Fits: Amana/Goodman AMEC800803BXAB and compatible furnace models
Category: Limit switch / Safety control

OEM vs. Generic

The genuine Goodman OEM control is factory-calibrated to the trip and reset temperatures specified for this furnace. Generic limit switches may carry a different temperature rating or mounting footprint, which can lead to nuisance trips or, worse, a switch that opens too late. For a safety-rated component we recommend the exact OEM part.

Installation Difficulty

Easy to Moderate. Turn off power at the disconnect, note the wiring, remove the two mounting screws, transfer the terminals to the new switch, and reinstall in the same orientation. Most DIYers with basic tools can complete this in under 30 minutes.

Always disconnect power before servicing. If the new limit trips repeatedly, diagnose airflow and blower operation before assuming a bad part.

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 AMEC800803BXAB — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman AMEC800803BXAB — 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 AMEC800803BXAB — 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.

Menu