What are the specs for this Limit Switch?

The correct replacement for Goodman model AMVC800804CXAB — 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 AMVC800804CXAB — 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 AMVC800804CXAB — 20162904

Name: OEM Goodman Primary Limit Control for AMVC800804CXAB — 20162904
Brand: Goodman
SKU: GOODMAN-7973
Price: 44.95 USD
Availability: InStock

SKU: GOODMAN-7973 Brand: Goodman

$44.95 $58.95

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The Goodman 20162904 is a genuine primary limit temperature control designed for AMVC800804CXAB gas furnaces. Mounted on the heat exchanger bulkhead, the primary limit continuously monitors supply-air temperature and opens the 24V control circuit if the furnace overheats — typically from low airflow, a clogged filter, or a failing blower. It automatically resets once temperature returns to a safe range, protecting the heat exchanger from thermal stress.

Specifications

Type: Primary high-limit temperature control (auto-reset)
Action: Opens on temperature rise, closes on cool-down
Circuit: Normally closed, 24V control interrupt
Mounting: Factory bulkhead hole pattern and bracket
OEM Part Number: 20162904
Fits: Goodman/Amana AMVC800804CXAB furnaces

OEM vs. Generic

The primary limit's trip point is matched to this furnace's cabinet and heat-exchanger design. A generic control with the wrong temperature rating or probe length can permit overheating or cause frequent nuisance shutdowns. The OEM Goodman 20162904 guarantees the correct calibration, sensor geometry, and mounting for reliable, safe operation.

Install Difficulty

Moderate (3/5). Around 30 minutes; the control mounts to the heat-exchanger panel and uses spade terminals. De-energize the furnace before service. Persistent tripping indicates an airflow fault that must be corrected rather than bypassed.

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 AMVC800804CXAB — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman AMVC800804CXAB — 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 AMVC800804CXAB — 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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