What are the specs for this Limit Switch?

The correct replacement for Goodman model GKS90904CXAD — 20162904 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 GKS90904CXAD — 20162904.

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 Primary High Limit Temperature Control for GKS90904CXAD — 20162904

Name: OEM Goodman Primary High Limit Temperature Control for GKS90904CXAD — 20162904
Brand: Goodman
SKU: GOODMAN-10785
Price: 35.95 USD
Availability: InStock

SKU: GOODMAN-10785 Brand: Goodman

$35.95 $46.95

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Goodman 20162904 Primary High Limit Temperature Control

The Goodman 20162904 is a genuine OEM primary high-limit temperature control designed for the GKS90904CXAD gas furnace and compatible Goodman/Amana models. This normally-closed safety switch monitors heat-exchanger and plenum temperatures, cutting power to the gas valve if the furnace overheats — a critical protection against cracked heat exchangers and fire hazards. A failed limit switch is a common cause of a furnace that short-cycles, trips on high limit, or refuses to fire.

Specifications

Part type: Primary high-limit temperature control (auto-reset)
Function: Overheat safety cutoff for gas valve/burners
Fits: Goodman GKS90904CXAD and compatible 90%-AFUE furnaces
Configuration: Normally closed (NC) snap-disc
OEM manufacturer: Goodman / Amana

OEM vs. Generic

Our OEM 20162904 is calibrated to the exact trip temperature Goodman engineered for this furnace, ensuring correct cycling and full safety compliance. Generic aftermarket limits may use a different set point, causing nuisance lockouts or reduced protection. For a safety-critical component, we recommend the OEM part.

Installation Difficulty: Moderate

Rated 3/5. Requires shutting off power and gas, removing the burner-compartment door, and transferring wiring to the new switch. Most competent DIYers can complete it in 20–30 minutes; if you are unsure why the original tripped, have an HVAC technician diagnose first.

Always disconnect power at the breaker before servicing your furnace.

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 Primary High Limit T...

$35.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GKS90904CXAD — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman GKS90904CXAD — 20162904. 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 GKS90904CXAD — 20162904?

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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