What are the specs for this Limit Switch?

The correct replacement for Goodman model GMP050-3 — B1370912S 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 GMP050-3 — B1370912S.

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 7 in. Primary Limit Switch for GMP050-3 — B1370912S

Name: OEM Goodman 240F 7 in. Primary Limit Switch for GMP050-3 — B1370912S
Brand: Goodman
SKU: GOODMAN-B1370912S
Price: 24.95 USD
Availability: InStock

SKU: GOODMAN-B1370912S Brand: Goodman

$24.95 $32.95

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Goodman B1370912S Primary Limit Switch

The B1370912S is a genuine OEM primary high-limit switch engineered for Goodman GMP050-3 gas furnaces. This snap-disc safety control monitors the temperature inside the heat exchanger compartment and shuts off the burners if the furnace overheats — protecting the heat exchanger, blower, and your home. A failed limit switch is a common cause of short-cycling and no-heat calls, and replacing it restores safe, reliable operation.

Specifications

Open temperature: 240°F
Insert / probe length: 7 inches
Type: Primary high-limit snap-disc
Reset: Automatic
Equipment: Gas furnace
Fits: Goodman GMP050-3

OEM vs. Generic

Our OEM B1370912S matches the factory calibration, mounting bracket, and terminal orientation exactly for a plug-and-play swap. The generic equivalent delivers the same 240°F trip point at a lower price and is a great value for budget-minded repairs, though minor bracket differences may require field adjustment.

Install Difficulty

Easy (1/5) — Two mounting screws and two spade terminals. Always disconnect power before servicing. Typical replacement time is under 15 minutes for a DIY homeowner or technician.

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 7 in. Primary L...

$24.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GMP050-3 — B1370912S?

Yes. This is the factory-specified OEM limit switch for the Goodman GMP050-3 — B1370912S. 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 GMP050-3 — B1370912S?

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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