What are the specs for this Limit Switch?

The correct replacement for Goodman model WFM18140S5DNCB — 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 WFM18140S5DNCB — 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 WFM18140S5DNCB — 10123529

Name: OEM Goodman Manual Reset Limit Switch for WFM18140S5DNCB — 10123529
Brand: Goodman
SKU: GOODMAN-14155
Price: 24.95 USD
Availability: InStock

SKU: GOODMAN-14155 Brand: Goodman

$24.95 $32.95

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Goodman 10123529 Manual Reset Limit Switch

Restore safe operation to your Goodman WFM18140S5DNCB furnace with the genuine OEM 10123529 manual reset limit switch. This normally-closed thermal safety device opens the control circuit if it senses excessive heat or a flame-rollout condition, shutting down the burners to prevent overheating and heat-exchanger damage. Because it is a manual reset switch, it will not automatically re-close after a fault — you press the reset button once the underlying cause has been corrected, giving you a clear indication that a safety event occurred.

Specifications

Type: Manual reset high-limit / rollout switch
Configuration: Normally closed (opens on temperature rise)
OEM Part Number: 10123529
Fits: Goodman WFM18140S5DNCB and compatible gas furnaces
Terminals: Quick-connect spade

OEM vs. Generic

Our OEM Goodman switch is calibrated to the exact factory trip temperature, ensuring the furnace's safety chain behaves as engineered. Generic aftermarket switches often carry looser temperature tolerances that can cause nuisance trips or, worse, fail to open at the correct threshold. For a safety-critical component, we recommend the OEM part.

Installation Difficulty

Easy (2/5). Disconnect furnace power, remove the two mounting screws, transfer the two spade wires to the new switch, and reinstall. Typically a 10–15 minute repair with a nut driver. Always shut off gas and electrical power before servicing.

Compatibility note: verify your furnace model and existing part number before ordering. Contact info@nationalhvacparts.com with any fitment questions.

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...

$24.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman WFM18140S5DNCB — 10123529?

Yes. This is the factory-specified OEM limit switch for the Goodman WFM18140S5DNCB — 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 WFM18140S5DNCB — 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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