What are the specs for this Limit Switch?

The correct replacement for Goodman model GMP100-4 Furnace — 10728343 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 GMP100-4 Furnace — 10728343.

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 Auto Reset Limit Switch for GMP100-4 Furnace — 10728343

Name: OEM Goodman Auto Reset Limit Switch for GMP100-4 Furnace — 10728343
Brand: Goodman
SKU: GOODMAN-11884
Price: 11.95 USD
Availability: InStock

SKU: GOODMAN-11884 Brand: Goodman

$11.95 $15.95

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The Goodman 10728343 Limit Switch is a genuine OEM high-limit temperature control for the Goodman GMP100-4 gas furnace. It continuously senses supply-air temperature and opens the control circuit if the furnace exceeds its safe operating limit, shutting down the burners to protect the heat exchanger. This is a core safety device — a failed or out-of-calibration limit switch can cause short cycling, no-heat conditions, or, if bypassed, unsafe overheating.

Specifications

Type: High-limit temperature switch
Function: Opens on overtemperature to de-energize burners
Mounting: Bracket / plate mount with spade terminals
OEM Part Number: 10728343
Fits: Goodman GMP100-4 furnace
Brand: Goodman (OEM)

OEM vs. Generic

Limit switches must trip at a precise factory-set temperature to protect the furnace correctly. This genuine OEM Goodman part is matched to the GMP100-4's designed setpoint and terminal layout for a plug-and-play fit. Generic substitutes with different trip points or geometry risk nuisance trips or inadequate protection, so OEM is strongly recommended for this safety control.

Install Difficulty: Easy

Rated Easy (2/5). Plan on about 15 minutes: turn off power and gas, note and disconnect the terminal wires, unscrew the old switch, and mount the replacement in the identical position. Never jumper or bypass the limit circuit. If the new switch trips repeatedly, have a licensed HVAC technician check filters, blower operation, and ductwork for restricted airflow.

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 Auto Reset Limit Swi...

$11.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GMP100-4 Furnace — 10728343?

Yes. This is the factory-specified OEM limit switch for the Goodman GMP100-4 Furnace — 10728343. 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 GMP100-4 Furnace — 10728343?

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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