What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH81005CNAA — 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 AMH81005CNAA — 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 AMH81005CNAA — 10123529

Name: OEM Goodman Manual Reset Limit Switch for AMH81005CNAA — 10123529
Brand: Goodman
SKU: GOODMAN-5909
Price: 22.95 USD
Availability: InStock

SKU: GOODMAN-5909 Brand: Goodman

$22.95 $29.95

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The Goodman 10123529 Manual Reset Limit Switch is a genuine OEM high-temperature safety cutout for the AMH81005CNAA and compatible Goodman and Amana furnaces. This normally-closed switch trips and locks out the furnace on an overheat or flame-rollout condition and, unlike an auto-reset limit, requires the technician to press the reset button after diagnosing and correcting the fault. That manual reset is an intentional safety feature that prevents the furnace from silently re-cycling through a dangerous condition.

Specifications

Part Number: 10123529
Type: Manual-reset limit / rollout safety switch (normally closed)
Function: High-temperature and flame-rollout lockout protection
Reset: Manual push-button
Fits: Goodman & Amana AMH81005CNAA and related furnaces
Brand: Goodman OEM

OEM vs. Generic

The genuine OEM switch is calibrated to the furnace's exact trip temperature, ensuring it opens at the certified threshold. Generic manual-reset switches may trip early (nuisance lockouts) or late (reduced protection). For a life-safety component, OEM is strongly recommended and helps keep the appliance within its listed safety rating.

Installation Difficulty

Rating: Easy (2/5). Disconnect power at the breaker, remove the two mounting screws and disconnect the spade terminals, then install the replacement in reverse. Typical time is 15–20 minutes. Important: if this switch tripped, always diagnose and correct the root cause (blocked flue, cracked heat exchanger, or restricted airflow) before resetting. When in doubt, call a licensed HVAC technician.

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...

$22.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH81005CNAA — 10123529?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH81005CNAA — 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 AMH81005CNAA — 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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