What are the specs for this Limit Switch?

The correct replacement for Goodman model WFD195045S3BAA — 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 WFD195045S3BAA — 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 Temperature Control for WFD195045S3BAA — 20162904

Name: OEM Goodman Primary Limit Temperature Control for WFD195045S3BAA — 20162904
Brand: Goodman
SKU: GOODMAN-13909
Price: 48.95 USD
Availability: InStock

SKU: GOODMAN-13909 Brand: Goodman

$48.95 $64.95

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The Goodman 20162904 primary limit temperature control is the genuine OEM high-limit safety switch for the WFD195045S3BAA gas furnace. Mounted on the heat-exchanger or blower bulkhead, it continuously monitors supply-air temperature and shuts down the burners if the furnace overheats — typically from restricted airflow, a dirty filter, or a failed blower. This auto-reset control closes again once the furnace cools, protecting the heat exchanger from cracking and preventing unsafe operating temperatures.

Specifications

Type: Primary high-limit temperature control (auto reset)
Contact configuration: Normally closed (SPST), opens on temperature rise
Function: Burner shutdown on supply-air overheat
Terminals: Quick-connect spade
Mount: Bulkhead / heat-exchanger location, direct-fit
Fits: Goodman/Amana WFD195045S3BAA and compatible models

OEM vs. Generic

Because trip temperature is calibrated to this specific furnace, we strongly recommend the OEM Goodman control. A generic limit with the wrong cutout point can allow the heat exchanger to overheat or cause nuisance shutdowns. For a safety-critical part, OEM is the right call.

Installation Difficulty

Easy (2 of 5). Roughly 20 minutes. Turn off gas and electrical power, disconnect the spade terminals, remove the two mounting screws, and install the new control in the same position and orientation. Before resetting a furnace that tripped on limit, correct the underlying airflow problem (replace the filter, check the blower). When in doubt, consult a licensed technician.

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 Temper...

$48.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman WFD195045S3BAA — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman WFD195045S3BAA — 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 WFD195045S3BAA — 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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