What are the specs for this Limit Switch?

The correct replacement for Goodman model GCH90904CXAA — 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 GCH90904CXAA — 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 Limit Control for GCH90904CXAA — 20162904

Name: OEM Goodman Primary Limit Control for GCH90904CXAA — 20162904
Brand: Goodman
SKU: GOODMAN-9731
Price: 35.95 USD
Availability: InStock

SKU: GOODMAN-9731 Brand: Goodman

$35.95 $47.95

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Goodman 20162904 Primary Limit Temperature Control

The Goodman 20162904 is a genuine OEM primary high-limit temperature control designed for the GCH90904CXAA gas furnace. This normally-closed thermal safety switch monitors supply-air temperature and cuts power to the gas valve if the furnace overheats — protecting the heat exchanger, blower, and surrounding cabinet from thermal damage. A furnace that short-cycles on limit, fails to fire, or trips on high temperature is a classic symptom of a failed or drifting limit control.

Specifications

Function: Primary high-temperature limit (safety) switch
Configuration: Normally closed, auto-reset
Fits: Goodman GCH90904CXAA furnace
Mount: Manifold/vestibule plate mount
OEM Part Number: 20162904

OEM vs. Generic

A limit switch is a life-safety device, and its trip temperature is matched to your specific furnace design. The genuine Goodman OEM 20162904 is calibrated to the factory setpoint, unlike universal limits that require guessing the cutout temperature. For any safety control, OEM is strongly recommended.

Installation Difficulty

Easy to moderate — typically two wire terminals and two mounting screws. Always disconnect power before service and confirm the correct part number, as the setpoint is model-specific.

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 Limit Contro...

$35.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GCH90904CXAA — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman GCH90904CXAA — 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 GCH90904CXAA — 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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