What are the specs for this Limit Switch?

The correct replacement for Goodman model WGFM28070V4BXAB — 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 WGFM28070V4BXAB — 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 WGFM28070V4BXAB — 20162903

Name: OEM Goodman 150°F Primary Limit Switch for WGFM28070V4BXAB — 20162903
Brand: Goodman
SKU: GOODMAN-14446
Price: 8.95 USD
Availability: InStock

SKU: GOODMAN-14446 Brand: Goodman

$8.95 $11.95

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The Goodman 20162903 Primary Limit Switch is a genuine OEM safety control rated for a 150°F cutout temperature, built for the WGFM28070V4BXAB gas furnace and compatible Goodman/Amana models. Mounted on the heat exchanger housing, this normally-closed thermal switch opens the circuit and shuts down the burners if the furnace overheats — protecting the heat exchanger and preventing a dangerous condition. A failed or nuisance-tripping limit switch causes short cycling or a no-heat condition.

Cutout temperature: 150°F (opens on rise)
Type: Primary high-limit, normally-closed, auto-reset
Function: Overheat protection / burner shutdown
Fitment: WGFM28070V4BXAB and compatible Goodman furnaces
OEM Part #: 20162903

OEM vs. Generic: Genuine Goodman limit switches are calibrated to the exact factory trip point and use the correct mounting bracket and terminal spacing. Generic replacements may trip early or late, leading to nuisance shutdowns or inadequate protection. For a safety-critical control, OEM is the reliable choice.

Install difficulty: Easy — disconnect power, unplug the two spade terminals, remove two mounting screws, and swap. No calibration required. Always cut power at the breaker before servicing.

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 WGFM28070V4BXAB — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman WGFM28070V4BXAB — 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 WGFM28070V4BXAB — 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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OEM Goodman 150°F Primary Limit Switch for WGFM28070V4BXAB — 20162903

Shipping Information

Return Policy

Frequently Asked Questions