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Goodman

OEM Goodman Manual Reset Limit Switch for AMH80903BXCA — 10123529

SKU: GOODMAN-5735 Brand: Goodman
$9.95 $12.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The Goodman 10123529 Manual Reset Limit Switch is a genuine OEM safety component engineered for the AMH80903BXCA gas furnace and compatible Goodman/Amana models. This normally-closed rollout/limit switch monitors heat exchanger and burner-box temperatures and opens the ignition circuit if an unsafe over-temperature or flame-rollout condition occurs, shutting down the furnace to prevent damage and protect your home.

Because it is a manual reset device, it will not auto-cycle after a fault — the switch must be physically reset once the underlying cause (blocked flue, failed blower, cracked heat exchanger, or dirty burners) has been corrected. This is a deliberate safety design that forces inspection before the furnace can run again.

  • Genuine OEM Goodman / Amana replacement part number 10123529
  • Manual reset rollout / limit switch — normally closed
  • Direct fit for AMH80903BXCA and related 80% AFUE furnaces
  • Factory-calibrated trip temperature — no field adjustment required
  • 1/4" quick-connect terminals for plug-and-play wiring

OEM vs. Generic: The genuine OEM switch ships with the exact factory trip point and bracket geometry, so it drops into the original mounting location and matches the furnace's published safety specs. Universal aftermarket switches often require rework of brackets or terminals and may carry a different calibration, which can cause nuisance lockouts or, worse, fail to trip at the correct temperature. For a life-safety component we always recommend OEM.

Install difficulty: Easy (1/5). Turn off power and gas, disconnect the two spade terminals, remove the mounting screw(s), install the new switch in the same orientation, and reconnect. Typically a 10–15 minute repair with a nut driver. If the switch keeps tripping after replacement, diagnose airflow and combustion before running the furnace.

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

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH80903BXCA — 10123529?
Yes. This is the factory-specified OEM limit switch for the Goodman AMH80903BXCA — 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 AMH80903BXCA — 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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Mike Rivera
HVAC Parts Specialist — Online