What are the specs for this Limit Switch?

The correct replacement for Goodman model GMNT060-3 — 1370903S 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 GMNT060-3 — 1370903S.

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 240°F Primary Limit Switch for GMNT060-3 — 1370903S

Name: OEM Goodman 240°F Primary Limit Switch for GMNT060-3 — 1370903S
Brand: Goodman
SKU: GOODMAN-11639
Price: 29.95 USD
Availability: InStock

SKU: GOODMAN-11639 Brand: Goodman

$29.95 $39.95

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The Goodman 1370903S Primary Limit Switch is a genuine OEM safety control for the GMNT060-3 gas furnace and compatible Goodman/Amana models. Rated at 240°F with a 3-inch insertion depth, this high-limit switch monitors heat-exchanger temperature and shuts off the burners if airflow is restricted or the furnace overheats — preventing heat-exchanger damage and unsafe operation. A tripped or failed limit switch commonly causes no-heat calls, blower running without the burner, or repeated overheating lockouts.

Specifications

Trip temperature: 240°F (auto-reset primary limit)
Insertion depth: 3 inches
Function: High-limit / overheat safety control
Fits: Goodman GMNT060-3 and cross-compatible furnaces
OEM Part Number: 1370903S

OEM vs. Generic

The OEM 1370903S is calibrated to the exact 240°F trip point and probe length specified for your furnace, so it protects the heat exchanger without nuisance trips. Generic limit switches with different trip temps or probe depths can either fail to protect or shut the furnace down prematurely. For a temperature-critical safety part, always match OEM.

Install Difficulty

Easy to Moderate — 15–30 minutes. Shut off power, note the wiring, remove the two mounting screws, and transfer the spade connectors to the new switch. Ensure the probe seats fully into the plenum and the bracket sits flush. Because this is a safety control, do not bypass it — replace with the correct OEM part.

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 240°F Primary Limit ...

$29.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GMNT060-3 — 1370903S?

Yes. This is the factory-specified OEM limit switch for the Goodman GMNT060-3 — 1370903S. 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 GMNT060-3 — 1370903S?

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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