What are the specs for this Limit Switch?

The correct replacement for Goodman model GMPV100-5 — 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 GMPV100-5 — 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 240F Primary Limit Switch for GMPV100-5 — 1370903S

Name: OEM Goodman 240F Primary Limit Switch for GMPV100-5 — 1370903S
Brand: Goodman
SKU: GOODMAN-12157
Price: 29.95 USD
Availability: InStock

SKU: GOODMAN-12157 Brand: Goodman

$29.95 $38.95

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Texas CMBL #19328542014

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The Goodman 1370903S Primary Limit Switch is a genuine OEM high-temperature safety control for GMPV100-5 gas furnaces. Rated to open at 240°F with a 3-inch insertion depth, it monitors supply-plenum temperature and shuts off the burners if airflow is restricted—protecting the heat exchanger from overheating and cracking. A failed-open limit is a frequent cause of no-heat and blower-runs-but-no-flame complaints.

Specifications

Part Number: 1370903S
Trip Temperature: 240°F (open on rise)
Insertion Depth: 3 inches
Type: Automatic-reset primary high limit
Compatibility: Goodman GMPV100-5 furnace (verify by OEM part number)

OEM vs. Generic

Limit switches are calibrated safety devices—the OEM Goodman part guarantees the exact 240°F set point and 3-inch probe length the furnace was engineered around. A generic switch with the wrong trip point or depth can nuisance-trip or, worse, fail to protect the heat exchanger. Always match the factory rating.

Installation Difficulty: Easy

Rated Easy. Turn off power and gas, remove the two mounting screws, transfer the wire leads, and secure the new switch to the plenum. Verify the probe seats fully. Roughly a 15-minute replacement.

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 240F Primary Limit S...

$29.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GMPV100-5 — 1370903S?

Yes. This is the factory-specified OEM limit switch for the Goodman GMPV100-5 — 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 GMPV100-5 — 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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