What are the specs for this Limit Switch?

The correct replacement for Goodman model ACVM970603BNBA — 20162903 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 ACVM970603BNBA — 20162903.

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 150°F Primary Limit Switch for ACVM970603BNBA — 20162903

Name: OEM Goodman 150°F Primary Limit Switch for ACVM970603BNBA — 20162903
Brand: Goodman
SKU: GOODMAN-3005
Price: 13.95 USD
Availability: InStock

SKU: GOODMAN-3005 Brand: Goodman

$13.95 $18.83

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The genuine Goodman 20162903 Primary Limit Switch is a factory safety control engineered for the ACVM970603BNBA modulating variable-speed gas furnace and compatible Goodman/Amana models. This normally-closed high-limit switch monitors heat-exchanger temperature and opens the burner circuit at 150°F to prevent overheating, protecting the cabinet, blower, and surrounding components from heat damage.

When a furnace short-cycles, trips on limit, or shuts down during a heating call, a failed or out-of-calibration primary limit is a common cause. Installing the correct OEM-spec switch restores reliable, safe operation.

Specifications

Part type: Primary high-limit / temperature switch
Open temperature: 150°F (auto-reset)
Configuration: Normally closed (N.C.)
Brand: Goodman / Amana OEM
OEM part number: 20162903
Fits: ACVM970603BNBA and compatible furnaces

OEM vs. Generic

Our OEM Goodman limit switch is calibrated to the exact trip temperature and mounting footprint specified by the manufacturer, ensuring proper safety response and a drop-in fit. Generic universal limits may carry a different open temperature or bracket and can cause nuisance trips or fail safety certification. For a furnace's primary safety control, OEM is strongly recommended.

Installation Difficulty

Easy (1/5). Two-screw mount with spade terminals — typically a 10–15 minute repair. Always disconnect power at the disconnect or breaker before servicing. If you are unsure, contact a licensed HVAC technician.

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 150°F Primary Limit ...

$13.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman ACVM970603BNBA — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman ACVM970603BNBA — 20162903. 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 ACVM970603BNBA — 20162903?

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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