What are the specs for this Limit Switch?

The correct replacement for Goodman model OEM Goodman Auxiliary Auto-Reset Limit Switch GMP125-5 — 20269903 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 Auxiliary Auto-Reset Limit Switch GMP125-5 — 20269903.

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 Auxiliary Auto-Reset Limit Switch GMP125-5 — 20269903

Name: OEM Goodman Auxiliary Auto-Reset Limit Switch GMP125-5 — 20269903
Brand: Goodman
SKU: GOODMAN-11914
Price: 22.95 USD
Availability: InStock

SKU: GOODMAN-11914 Brand: Goodman

$22.95 $29.95

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Texas CMBL #19328542014

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The Goodman 20269903 Auxiliary Limit Switch is a genuine OEM auto-reset thermal safety for Goodman GMP125-5 gas furnaces. As a secondary/auxiliary limit, it provides a backup overheat cutout beyond the primary high limit. Being auto-reset, it opens the control circuit on an over-temperature event and automatically closes again once the sensed area cools to a safe range.

Specifications

OEM Part #: 20269903
Part Type: Auxiliary limit switch, automatic reset
Fits: Goodman GMP125-5 gas furnace
Reset: Automatic (self-resets after cooldown)
Trip point: Factory-set to furnace specification
Brand: Goodman (OEM)

OEM vs. Generic

Auxiliary limits are defined by their trip temperature, reset behavior, and mounting location. OEM 20269903 delivers the exact auto-reset calibration and bracket the GMP125-5 was engineered around. A generic switch with a different rating or a manual-reset design can change how the furnace recovers from a fault and may compromise the layered safety scheme. Stay OEM on all limit controls.

Installation Difficulty

Easy — cut power and gas, remove the mounting screws, and move the two wire terminals to the new switch. No calibration needed.

Repeated auxiliary-limit trips usually point to an airflow or heat-exchanger problem — diagnose before assuming the switch has failed.

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 Auxiliary Auto-Reset...

$22.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman OEM Goodman Auxiliary Auto-Reset Limit Switch GMP125-5 — 20269903?

Yes. This is the factory-specified OEM limit switch for the Goodman OEM Goodman Auxiliary Auto-Reset Limit Switch GMP125-5 — 20269903. 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 Auxiliary Auto-Reset Limit Switch GMP125-5 — 20269903?

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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