What are the specs for this Limit Switch?

The correct replacement for Goodman model GKS90905DXAF — 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 GKS90905DXAF — 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 GKS90905DXAF — 20162903

Name: OEM Goodman 150°F Primary Limit Switch for GKS90905DXAF — 20162903
Brand: Goodman
SKU: GOODMAN-20162903
Price: 8.95 USD
Availability: InStock

SKU: GOODMAN-20162903 Brand: Goodman

$8.95 $11.95

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The Goodman 20162903 Primary Limit Switch is a genuine OEM safety control designed as a direct replacement for the GKS90905DXAF gas furnace and other compatible Goodman/Amana models. This high-limit switch continuously monitors heat-exchanger temperature and cuts power to the gas valve if the furnace overheats — protecting your equipment and your home. A failed limit switch is a common cause of a furnace that short-cycles, trips on high temperature, or fails to fire.

Specifications

Type: Primary (high) limit switch, automatic reset
Trip point: 150°F
Function: Over-temperature safety cutout for the heat exchanger
Fit: Direct OEM replacement for GKS90905DXAF
Brand: Goodman (also fits many Amana furnaces)

OEM vs. Generic

Our OEM version is the factory-specified part with the exact trip temperature, mounting flange, and terminal layout your furnace's control board expects — the safest, guaranteed-fit choice. A generic equivalent can save a few dollars but may vary slightly in bracket dimensions or reset behavior, so verify the temperature rating before installing.

Installation Difficulty

Easy (1/5). Shut off power and gas, remove two screws securing the switch to the heat-exchanger panel, disconnect the two spade terminals, and reverse the process with the new switch. Typically a 10–15 minute job for a DIYer comfortable working around a de-energized furnace. If you are unsure why the original switch failed, have a licensed HVAC technician inspect for a blocked flue or dirty filter first.

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 GKS90905DXAF — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman GKS90905DXAF — 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 GKS90905DXAF — 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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