What are the specs for this Limit Switch?

The correct replacement for Goodman model OEM Goodman Manual Reset Limit Switch AMES921005CNAA — 10123539 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 OEM Goodman Manual Reset Limit Switch AMES921005CNAA — 10123539.

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 AMES921005CNAA — 10123539

Name: OEM Goodman Manual Reset Limit Switch AMES921005CNAA — 10123539
Brand: Goodman
SKU: GOODMAN-4764
Price: 29.95 USD
Availability: InStock

SKU: GOODMAN-4764 Brand: Goodman

$29.95 $38.95

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Goodman 10123539 Manual Reset Limit Switch

The 10123539 is a genuine Goodman manual-reset high-limit / rollout safety switch for the AMES921005CNAA gas furnace. This thermally activated switch opens the ignition/gas circuit if it senses an over-temperature or flame-rollout condition, shutting the furnace down to prevent damage and hazard. Because it is a manual-reset device, it must be pressed to reset after tripping — a deliberate safety feature that forces inspection before the furnace runs again. If your furnace repeatedly locks out on limit, this is a common replacement part.

Specifications

Part number: 10123539
Type: Manual-reset high-limit / rollout safety switch
Function: Over-temperature and flame-rollout cutoff
Reset: Manual (push-button)
Fits: Amana/Goodman AMES921005CNAA furnace

OEM vs. Generic

OEM limit switches are calibrated to the exact trip temperature the furnace was engineered around, mount to the factory bracket, and use the correct terminal orientation. Generic switches with a different trip point can nuisance-trip or, worse, fail to protect — never a place to cut corners. Always use the OEM-spec safety switch.

Installation Difficulty

Moderate (2/5). Shut off power and gas, disconnect two spade terminals, remove two mounting screws, and swap. About 15–20 minutes with basic hand tools. If the switch keeps tripping after replacement, have a technician diagnose the underlying overheat cause.

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...

$29.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman OEM Goodman Manual Reset Limit Switch AMES921005CNAA — 10123539?

Yes. This is the factory-specified OEM limit switch for the Goodman OEM Goodman Manual Reset Limit Switch AMES921005CNAA — 10123539. 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 OEM Goodman Manual Reset Limit Switch AMES921005CNAA — 10123539?

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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