What are the specs for this Limit Switch?

The correct replacement for Goodman model OEM Goodman 240°F Primary Limit Switch 7" GUPS100-3 — 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 OEM Goodman 240°F Primary Limit Switch 7" GUPS100-3 — 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 240°F Primary Limit Switch 7" GUPS100-3 — B1370912S

Name: OEM Goodman 240°F Primary Limit Switch 7" GUPS100-3 — B1370912S
Brand: Goodman
SKU: GOODMAN-13293
Price: 24.95 USD
Availability: InStock

SKU: GOODMAN-13293 Brand: Goodman

$24.95 $32.95

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The Goodman B1370912S Primary Limit Switch is a genuine OEM 240°F high-limit safety with a 7 inch insertion depth, built for Goodman GUPS100-3 gas furnaces. It monitors heat-exchanger and plenum temperature and shuts off the burners if the furnace overheats — typically from restricted airflow, a dirty filter, or a failed blower. Replacing a tripped or open limit restores safe heating.

Specifications

Trip temperature: 240°F (auto-reset)
Insertion / probe length: 7 inch
Function: Primary high-limit safety cutout
OEM Part Number: B1370912S
Fits: Goodman GUPS100-3 furnace
Brand: Goodman (OEM)

OEM vs. Generic

As a safety limit, the OEM Goodman switch is the recommended choice — the 240°F trip point and 7" probe length are calibrated to your furnace's heat-exchanger geometry. Generic limits with a different length or trip rating can sit in the wrong airstream and either nuisance-trip or respond too slowly. Match the OEM spec exactly on safety parts.

Installation Difficulty

Easy. Remove two mounting screws on the burner/blower panel, disconnect the two terminals, and slide the new probe into place — 15–20 minutes. Disconnect power and gas first. If the limit reopens after replacement, check the filter, blower, and ductwork for airflow restriction before running.

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 ...

$24.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman OEM Goodman 240°F Primary Limit Switch 7" GUPS100-3 — B1370912S?

Yes. This is the factory-specified OEM limit switch for the Goodman OEM Goodman 240°F Primary Limit Switch 7" GUPS100-3 — 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 OEM Goodman 240°F Primary Limit Switch 7" GUPS100-3 — 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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