What are the specs for this Limit Switch?

The correct replacement for Goodman model GSU100-4 — B1370253 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 GSU100-4 — B1370253.

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 140°F Stack Overtemp Limit Switch for GSU100-4 — B1370253

Name: OEM Goodman 140°F Stack Overtemp Limit Switch for GSU100-4 — B1370253
Brand: Goodman
SKU: GOODMAN-13017
Price: 8.95 USD
Availability: InStock

SKU: GOODMAN-13017 Brand: Goodman

$8.95 $11.95

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The Goodman B1370253 Stack Over-Temperature Limit Switch monitors flue/vent temperature and protects the furnace against overheating in the venting path. It is a direct-fit replacement for the Goodman GSU100-4 and trips at 140°F to interrupt operation when stack temperatures climb outside the safe range.

Specifications

Trip temperature: 140°F
Type: Normally-closed stack over-temp limit
Fits: Goodman GSU100-4 furnace
OEM Part Number: B1370253
Function: Flue / stack over-temperature safety

OEM vs. Generic

The precise 140°F trip point is what makes this switch protect correctly without nuisance shutdowns. Because generic replacements often ship at different temperature ratings and terminal styles, the genuine Goodman OEM switch is the safest choice for this over-temp circuit. Never bypass or defeat a stack limit.

Installation

Difficulty: Easy (DIY-friendly). Shut off power, remove the two mounting screws, swap the push-on terminals, and remount in the same location so the sensing surface contacts the stack correctly. Repeated tripping usually points to a venting or draft problem — inspect the flue before returning the furnace to service.

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 140°F Stack Overtemp...

$8.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GSU100-4 — B1370253?

Yes. This is the factory-specified OEM limit switch for the Goodman GSU100-4 — B1370253. 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 GSU100-4 — B1370253?

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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