What are the specs for this Limit Switch?

The correct replacement for Goodman model WFD195090S4CAA — 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 WFD195090S4CAA — 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 WFD195090S4CAA — 20162903

Name: OEM Goodman 150°F Primary Limit Switch for WFD195090S4CAA — 20162903
Brand: Goodman
SKU: GOODMAN-13981
Price: 18.95 USD
Availability: InStock

SKU: GOODMAN-13981 Brand: Goodman

$18.95 $24.95

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Goodman 20162903 Primary Limit Switch (150°F)

The Goodman 20162903 is a genuine OEM primary high-limit switch rated to open at 150°F, designed for the WFD195090S4CAA gas furnace. This snap-disc safety control continuously monitors heat-exchanger temperature and shuts down the burners if the furnace overheats — typically caused by restricted airflow, a dirty filter, or blower failure. A tripped or failed limit switch is a common reason a furnace short-cycles or stops heating entirely.

Specifications

Type: Primary high-limit / snap-disc safety switch
Trip temperature: 150°F (opens on rise)
Function: Overheat protection, auto-reset
Fits model: WFD195090S4CAA
OEM part number: 20162903

OEM vs. Generic

The OEM 20162903 is calibrated to the precise trip temperature and mounting footprint your furnace's control sequence expects. Generic limit switches with the wrong set point can nuisance-trip or, worse, fail to protect the heat exchanger. As a safety component, the genuine part is the recommended choice.

Installation Difficulty

Easy to Moderate — the switch mounts to the burner/heat-exchanger panel with two screws and quick-connect terminals. Cut power at the breaker first, note wire positions, and confirm airflow issues are resolved so the new switch isn't tripping on a real fault.

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 ...

$18.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman WFD195090S4CAA — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman WFD195090S4CAA — 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 WFD195090S4CAA — 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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