What are the specs for this Limit Switch?

The correct replacement for Goodman model WGFM195045S3BAC — 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 WGFM195045S3BAC — 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 WGFM195045S3BAC — 20162904

Name: OEM Goodman Primary Limit Switch for WGFM195045S3BAC — 20162904
Brand: Goodman
SKU: GOODMAN-14292
Price: 39.95 USD
Availability: InStock

SKU: GOODMAN-14292 Brand: Goodman

$39.95 $52.95

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Protect your furnace and home with the genuine Goodman 20162904 Primary Limit Temperature Control, a direct-fit high-limit safety switch for the WGFM195045S3BAC gas furnace. This automatic-reset control monitors heat-exchanger and plenum temperature and shuts down the burners if the furnace overheats — a common cause of no-heat calls, short cycling, and blower-runs-constantly complaints.

Specifications

OEM Part Number: 20162904
Type: Primary high-limit temperature control (auto-reset)
Function: Opens the gas valve circuit on over-temperature
Mounting: Furnace-specific bracket/flange fit
Fit: Goodman WGFM195045S3BAC gas furnace
Equipment: Gas Furnace

OEM vs. Generic

The OEM 20162904 is calibrated to the precise trip temperature and mounting geometry Goodman specified for this heat exchanger. Generic limit switches often carry a different cut-out temperature or footprint, which can cause nuisance lockouts or, worse, fail to protect against a genuine overheat. For a safety control, always choose the OEM-calibrated part.

Installation

Difficulty: Moderate. Turn off power and gas at the furnace, photograph and disconnect the two wire leads, remove the mounting screws, and install the new limit in the identical position and orientation. Reconnect the leads, restore power, and verify a normal heating cycle with proper temperature rise. If you are not comfortable working around the gas valve and control board, hire a licensed HVAC technician.

Genuine Goodman OEM control, in stock and guaranteed to fit the WGFM195045S3BAC.

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...

$39.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman WGFM195045S3BAC — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman WGFM195045S3BAC — 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 WGFM195045S3BAC — 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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