What are the specs for this Limit Switch?

The correct replacement for Goodman model AMVC81155CXAB — 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 AMVC81155CXAB — 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 AMVC81155CXAB — 20162904

Name: OEM Goodman Primary Limit Temperature Control for AMVC81155CXAB — 20162904
Brand: Goodman
SKU: GOODMAN-8647
Price: 35.95 USD
Availability: InStock

SKU: GOODMAN-8647 Brand: Goodman

$35.95 $46.95

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The Goodman 20162904 Primary Limit Temperature Control is a genuine OEM high-limit switch for the AMVC81155CXAB two-stage, variable-speed gas furnace. Mounted on the heat-exchanger vestibule, this auto-reset control continuously senses supply-air temperature. If the furnace overheats — commonly from a dirty filter, blocked ducts, or a failing blower — the primary limit opens the gas valve circuit to shut down the burners, then automatically closes and allows ignition once the temperature returns to a safe range.

Specifications

Type: Primary high-limit temperature control
Reset: Automatic
Circuit: Normally closed, opens on high temperature
Fits: Goodman / Amana AMVC81155CXAB and compatible furnaces
OEM Part Number: 20162904

OEM vs. Generic

The OEM Goodman primary limit is factory-calibrated to the precise open/close set points for this furnace and mounts to the exact bracket footprint. Generic replacements may differ in trip temperature or mounting hole pattern, leading to nuisance lockouts or improper protection. For a safety limit, the genuine OEM control is strongly recommended.

Installation Difficulty: Easy (1/5)

This is a quick repair: cut power at the furnace disconnect, remove the two mounting screws, transfer the wire terminals to the matching tabs on the new control, remount to the vestibule panel, and restore power. Before replacing the limit, verify airflow is not restricted so the new switch does not trip for the same reason.

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 AMVC81155CXAB — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman AMVC81155CXAB — 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 AMVC81155CXAB — 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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