What are the specs for this Limit Switch?

The correct replacement for Goodman model GMH951155DXAG — 10123519 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 GMH951155DXAG — 10123519.

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 GMH951155DXAG — 10123519

Name: OEM Goodman Manual Reset Limit Switch for GMH951155DXAG — 10123519
Brand: Goodman
SKU: GOODMAN-11543
Price: 10.95 USD
Availability: InStock

SKU: GOODMAN-11543 Brand: Goodman

$10.95 $13.95

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Goodman 10123519 Manual Reset Limit Switch

The Goodman 10123519 is a genuine OEM manual-reset high-limit / rollout safety switch built for the GMH951155DXAG 95% AFUE gas furnace and compatible GMH95 models. This normally-closed thermal switch opens the ignition circuit if it senses excessive temperature — such as from a blocked heat exchanger, flame rollout, or restricted airflow — and must be manually reset once the fault is cleared. It's a critical safety device that protects the furnace and home from overheating and combustion hazards.

Specifications

OEM Part Number: 10123519
Type: Manual reset high-limit / rollout switch (normally closed)
Reset: Manual (push-button)
Compatible Model: GMH951155DXAG (95% AFUE)
Function: Over-temperature / flame rollout safety shutoff

OEM vs. Generic

Limit switches are calibrated to a specific trip temperature. Using the OEM 10123519 guarantees the correct setpoint, terminal type, and bracket fit for your furnace — a generic switch with a different rating can nuisance-trip or, dangerously, fail to trip. For a safety control, always match the factory part.

Install Difficulty

Easy — Two spade terminals and one or two mounting screws. Disconnect power, replace the switch, and press reset. A quick DIY repair — but if the switch tripped, diagnose the overheating cause before returning the furnace to service.

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...

$10.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GMH951155DXAG — 10123519?

Yes. This is the factory-specified OEM limit switch for the Goodman GMH951155DXAG — 10123519. 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 GMH951155DXAG — 10123519?

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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