What are the specs for this Limit Switch?

The correct replacement for Goodman model AMSS920805CNAA — 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 AMSS920805CNAA — 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 Amana Manual Reset Limit Switch for AMSS920805CNAA — 10123539

Name: OEM Goodman Amana Manual Reset Limit Switch for AMSS920805CNAA — 10123539
Brand: Goodman
SKU: GOODMAN-7468
Price: 18.95 USD
Availability: InStock

SKU: GOODMAN-7468 Brand: Goodman

$18.95 $24.95

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Goodman 10123539 Manual Reset Limit Switch

Genuine OEM Goodman/Amana 10123539 manual reset high-limit switch, a critical safety control for the AMSS920805CNAA gas furnace. This normally-closed thermal switch opens to shut down the burners if the heat exchanger or supply air exceeds its safe temperature, and requires a manual reset button press before the furnace can fire again — a deliberate design that flags overheating conditions for inspection rather than silently cycling.

Part Number: 10123539
Type: Manual reset high-limit / rollout safety switch
Action: Normally closed, opens on over-temperature
Reset: Manual push-button
Fits Model: AMSS920805CNAA (Furnace)
Brand: Goodman / Amana OEM

OEM vs. Generic

The OEM 10123539 is calibrated to the exact trip temperature specified for this furnace and mounts to the factory bracket without modification. Generic limit switches may trip early (nuisance lockouts) or late (a genuine safety risk). For a safety-critical control, always use the genuine calibrated part.

Install Difficulty

Moderate (2/5) — Requires disconnecting power, removing two mounting screws, and transferring spade connectors. 10–15 minutes for a comfortable DIYer; verify orientation and connector polarity.

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 Amana Manual Reset L...

$18.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMSS920805CNAA — 10123539?

Yes. This is the factory-specified OEM limit switch for the Goodman AMSS920805CNAA — 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 AMSS920805CNAA — 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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