What are the specs for this Limit Switch?

The correct replacement for Goodman model WGFM195070S3BAC — 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 WGFM195070S3BAC — 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 150F Primary Limit Switch for WGFM195070S3BAC — 20162903

Name: OEM Goodman 150F Primary Limit Switch for WGFM195070S3BAC — 20162903
Brand: Goodman
SKU: GOODMAN-14305
Price: 8.95 USD
Availability: InStock

SKU: GOODMAN-14305 Brand: Goodman

$8.95 $11.95

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The Goodman 20162903 Primary Limit Switch is a factory OEM safety control engineered for the Goodman WGFM195070S3BAC gas furnace and compatible Goodman/Amana models. This normally-closed, temperature-actuated switch monitors heat-exchanger temperature and opens the burner circuit at its 150°F trip point to prevent dangerous overheating — a critical protection any properly functioning furnace requires.

A failing primary limit switch is a common cause of short-cycling, no-heat calls, and nuisance lockouts. Replacing it with the exact OEM part restores the manufacturer's calibrated trip temperature and keeps your furnace's safety chain intact.

Specifications

Part Number: 20162903
Type: Primary high-limit switch (normally closed / auto-reset)
Trip Temperature: 150°F
Brand: Goodman (OEM)
Fits: WGFM195070S3BAC and select Goodman/Amana gas furnaces
Application: Heat-exchanger limit protection

OEM vs. Generic

Our genuine OEM Goodman switch is calibrated to the exact 150°F set point your furnace's control board expects. Aftermarket universal limits often trip early or late, causing intermittent heat loss and premature board wear. For a safety component, OEM tolerance matters — this part ships to factory specification.

Installation Difficulty

Easy (2/5). A two-wire, two-screw swap that most handy homeowners can complete in 10–15 minutes. Always disconnect furnace power at the breaker before servicing. If the switch trips again immediately after replacement, have a licensed technician inspect airflow and the heat exchanger.

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 150F Primary Limit S...

$8.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman WGFM195070S3BAC — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman WGFM195070S3BAC — 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 WGFM195070S3BAC — 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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