What are the specs for this Limit Switch?

The correct replacement for Goodman model AMES800804BXAA — 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 AMES800804BXAA — 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 Control for AMES800804BXAA — 20162904

Name: OEM Goodman Primary Limit Control for AMES800804BXAA — 20162904
Brand: Goodman
SKU: GOODMAN-4649
Price: 64.95 USD
Availability: InStock

SKU: GOODMAN-4649 Brand: Goodman

$64.95 $84.95

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 20162904 is a genuine Goodman/Amana primary limit temperature control for the AMES800804BXAA gas furnace and other compatible AMES80-series models. Mounted on the heat-exchanger or blower deck, the primary limit continuously senses supply-air temperature and interrupts the gas valve if the furnace overheats — most often from restricted airflow such as a clogged filter, closed registers, or a failing blower. It also coordinates blower operation to keep discharge temperatures within a safe range.

Specifications

Part number: 20162904
Type: Primary high-limit temperature control
Function: Shuts off gas valve on overtemperature; manages blower response
Reset: Automatic (self-resetting on cool-down)
Fits: Goodman/Amana AMES800804BXAA and compatible AMES80 furnaces

OEM vs. Generic

The primary limit is calibrated to a specific trip temperature and mounting position unique to your furnace. OEM ensures the set point and bracket match exactly. A generic control with a different rating can nuisance-trip or, worse, fail to protect the heat exchanger. As a primary safety device, it should always be the factory part.

Installation Difficulty

Easy–Moderate (2/5). Usually two mounting screws and two spade terminals, but correct positioning against the heat exchanger is critical. Cut power and gas first, and identify the airflow issue that caused the original to trip. For safety-critical controls, a licensed HVAC technician is recommended.

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...

$64.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMES800804BXAA — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman AMES800804BXAA — 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 AMES800804BXAA — 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