What are the specs for this Limit Switch?

The correct replacement for Goodman model GMS950453BXA — 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 GMS950453BXA — 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 Switch for GMS950453BXA — 20162904

Name: OEM Goodman Primary Limit Switch for GMS950453BXA — 20162904
Brand: Goodman
SKU: GOODMAN-12192
Price: 35.95 USD
Availability: InStock

SKU: GOODMAN-12192 Brand: Goodman

$35.95 $46.95

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Goodman 20162904 Primary Limit Temperature Control

The Goodman 20162904 is a genuine OEM primary high-limit temperature control designed for Goodman GMS95 gas furnaces such as the GMS950453BXA. This safety switch continuously monitors supply-air temperature over the heat exchanger and opens the gas circuit if the furnace overheats — protecting the heat exchanger from cracking and preventing a fire hazard when airflow is restricted by a dirty filter, failed blower, or blocked ducts.

Specifications

Part type: Primary high-limit switch (auto-reset)
Function: Opens gas valve circuit on over-temperature
Mounting: OEM bracket, direct furnace fit
Fits: Goodman GMS95 series, including GMS950453BXA
OEM part number: 20162904

OEM vs. Generic

The OEM 20162904 is calibrated to the exact trip temperature specified for your furnace, ensuring reliable safety operation without nuisance shutdowns. Because this is a life-safety component, we strongly recommend the OEM part; our generic equivalent is offered only where the trip point and mounting are confirmed identical.

Installation Difficulty

Moderate (2/5). Shut off power and gas, remove the burner-compartment door, disconnect the two spade terminals, and unscrew the old limit. A 10–15 minute repair for a technician. Do not bypass or jumper a failed limit — replace it.

Verify the temperature rating and bracket match your original before installing. Safety-related repairs should be performed by a qualified HVAC professional.

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 Switch...

$35.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GMS950453BXA — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman GMS950453BXA — 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 GMS950453BXA — 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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