What are the specs for this Limit Switch?

The correct replacement for Goodman model GKS90905DXAB — 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 GKS90905DXAB — 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 GKS90905DXAB — 20162903

Name: OEM Goodman 150°F Primary Limit Switch for GKS90905DXAB — 20162903
Brand: Goodman
SKU: GOODMAN-10857
Price: 8.95 USD
Availability: InStock

SKU: GOODMAN-10857 Brand: Goodman

$8.95 $11.95

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The Goodman 20162903 Primary Limit Switch is a genuine OEM high-limit safety control rated to trip at 150°F, designed for the GKS90905DXAB gas furnace and compatible Goodman/Amana models. Mounted on the heat exchanger or blower housing, it monitors supply-air temperature and shuts off the burners if the furnace overheats — protecting the heat exchanger and preventing fire hazards.

A failed limit switch is a common cause of short-cycling, no-heat calls, or a furnace that locks out on a limit fault. Replacing this low-cost safety component restores normal operation and keeps the furnace protected.

Specifications

OEM Part Number: 20162903
Category: Limit Switch (Primary / High Limit)
Trip Temperature: 150°F (auto-reset)
Function: Overheat / high-temperature safety cutoff
Compatible Model: GKS90905DXAB
Brand: Goodman / Amana
Equipment Type: Gas Furnace

OEM vs. Generic

The OEM limit switch is calibrated to the exact 150°F factory trip point your furnace was designed around, ensuring reliable protection. Generic switches may trip early or late, causing nuisance shutdowns or, worse, failing to protect the heat exchanger. For a safety control, OEM is the safe choice.

Installation Difficulty

Moderate (2/5) — Two mounting screws and two spade terminals. Cut power first, photograph the wiring, and match the terminal orientation. Typically a 15-minute job.

Verify the trip rating matches your unit's specification.

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 GKS90905DXAB — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman GKS90905DXAB — 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 GKS90905DXAB — 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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