What are the specs for this Limit Switch?

The correct replacement for Goodman model WGFM28070V4BXAA — 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 WGFM28070V4BXAA — 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 WGFM28070V4BXAA — 20162903

Name: OEM Goodman 150°F Primary Limit Switch for WGFM28070V4BXAA — 20162903
Brand: Goodman
SKU: GOODMAN-14434
Price: 8.95 USD
Availability: InStock

SKU: GOODMAN-14434 Brand: Goodman

$8.95 $11.95

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Goodman 20162903 Primary Limit Switch (150°F)

The Goodman 20162903 is a genuine OEM primary limit switch rated at 150°F for the WGFM28070V4BXAA gas furnace. This automatic-reset high-limit control senses supply-air temperature and opens the burner circuit if the furnace overheats — typically from restricted airflow, a dirty filter, or blower problems — then closes again once temperatures normalize. It protects the heat exchanger from thermal damage and is a key safety component in the furnace's control chain.

Specifications

OEM Part Number: 20162903
Component: Primary high-limit switch
Trip Temperature: 150°F
Reset Type: Automatic
Brand: Goodman
Equipment Type: Gas Furnace
Fits Model: WGFM28070V4BXAA

OEM vs. Generic

The OEM Goodman 20162903 is factory-calibrated to the specified 150°F setpoint with the correct mounting flange and terminal layout for this furnace. Generic limit switches with a different temperature rating can cause nuisance shutdowns or fail to protect the heat exchanger. For a temperature-critical safety part, the exact-fit OEM switch is the right choice.

Installation Difficulty: Easy

Rated Easy (2/5). Shut off power and gas, photograph and disconnect the wiring, remove the mounting screws, install the 20162903 in the same position, reconnect the leads, and verify normal operation. Correct any airflow restriction that may have caused the original trip.

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 ...

$8.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman WGFM28070V4BXAA — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman WGFM28070V4BXAA — 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 WGFM28070V4BXAA — 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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