What are the specs for this Limit Switch?

The correct replacement for Goodman model WFM18045S3AXCC — 10123529 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 WFM18045S3AXCC — 10123529.

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 Manual Reset Limit Switch for WFM18045S3AXCC — 10123529

Name: OEM Goodman Manual Reset Limit Switch for WFM18045S3AXCC — 10123529
Brand: Goodman
SKU: GOODMAN-14038
Price: 12.95 USD
Availability: InStock

SKU: GOODMAN-14038 Brand: Goodman

$12.95 $16.95

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Overview

The Goodman 10123529 is a genuine OEM manual-reset high-limit switch for the WFM18045S3AXCC furnace. This safety control monitors temperature in the heat-exchanger or burner area and opens the circuit if the furnace overheats — commonly caused by restricted airflow, a failed blower, or a blocked flue. Unlike an auto-reset limit, a manual-reset switch stays open until a technician presses the button, ensuring a genuine over-temperature fault is investigated rather than silently cycling. A tripped or failed limit is a frequent cause of no-heat calls.

Specifications

Type: manual-reset high-limit / rollout safety switch
Function: opens on overheat, requires manual reset
Fits: Goodman WFM18045S3AXCC furnace
OEM part number: 10123529
Contacts: normally closed, opens on temperature rise
Mounting: bracket / probe style per original

OEM vs. Generic

The OEM Goodman switch is calibrated to the exact trip and reset temperature Goodman specified for this furnace, and its terminals and mounting match the harness and bracket. Generic limits can differ in trip point or footprint, risking nuisance trips or — worse — a switch that fails to protect. For a safety component, OEM calibration matters.

Install Difficulty

Easy. Typically two mounting screws and two spade terminals. Plan 10–15 minutes. Disconnect power first, and if the old switch had tripped, diagnose the root airflow or flue cause before restoring heat.

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 Manual Reset Limit S...

$12.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman WFM18045S3AXCC — 10123529?

Yes. This is the factory-specified OEM limit switch for the Goodman WFM18045S3AXCC — 10123529. 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 WFM18045S3AXCC — 10123529?

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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