What are the specs for this Limit Switch?

The correct replacement for Goodman model WFD195045S3BAB — 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 WFD195045S3BAB — 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.

IMAGE COMING SOON

Goodman

OEM Goodman Primary Limit Temperature Control for WFD195045S3BAB — 20162904

Name: OEM Goodman Primary Limit Temperature Control for WFD195045S3BAB — 20162904
Brand: Goodman
SKU: GOODMAN-13921
Price: 44.95 USD
Availability: InStock

SKU: GOODMAN-13921 Brand: Goodman

$44.95 $59.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Goodman 20162904 Primary Limit Temperature Control

The Goodman 20162904 is the primary high-limit temperature control (limit switch) for the WFD195045S3BAB gas furnace and compatible Goodman/Amana models. Mounted on the heat exchanger or blower deck, this safety device continuously monitors supply-air temperature and cuts power to the gas valve if the furnace overheats — typically from restricted airflow, a dirty filter, or a failed blower. When the temperature returns to a safe range, the control automatically resets and allows the furnace to fire again. A furnace that short-cycles, trips on limit, or fails to heat often needs this control replaced.

Specifications

Type: Automatic-reset primary limit / high-temperature safety control
Function: Interrupts burner operation on over-temperature
Fit: Goodman WFD195045S3BAB and compatible furnaces
Mount: Heat exchanger / blower compartment (bracket mount)
OEM Part Number: 20162904

OEM vs. Generic

The OEM 20162904 is calibrated to the exact trip and reset temperatures Goodman specifies for this furnace's heat exchanger. Generic universal limits may open at the wrong setpoint — nuisance-tripping during normal operation or, worse, failing to protect against a genuine overheat. Because this is a life-safety component, the genuine OEM control is the recommended choice.

Installation Difficulty

Easy to moderate — DIY-capable with basic tools. Cut power at the disconnect, remove two mounting screws, unplug the wire leads, and swap in the new control. Confirm the furnace cycles normally and does not trip after installation.

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...

$44.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman WFD195045S3BAB — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman WFD195045S3BAB — 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 WFD195045S3BAB — 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.

Menu