What are the specs for this Limit Switch?

The correct replacement for Goodman model GMP100-3 — B1370113 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 GMP100-3 — B1370113.

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.

IMAGE COMING SOON

Goodman

OEM Goodman 120°F Auxiliary Limit Switch for GMP100-3 — B1370113

Name: OEM Goodman 120°F Auxiliary Limit Switch for GMP100-3 — B1370113
Brand: Goodman
SKU: GOODMAN-B1370113
Price: 10.95 USD
Availability: InStock

SKU: GOODMAN-B1370113 Brand: Goodman

$10.95 $14.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

The Goodman B1370113 Auxiliary Limit Switch is a genuine OEM safety control for the Goodman GMP100-3 gas furnace, rated to open at 120°F. This auxiliary (secondary) limit monitors temperature in the blower or supply area and cuts power to the gas valve if the furnace overheats — typically from a dirty filter, blocked airflow, or blower failure. A failed limit switch can cause no-heat conditions or, worse, allow unsafe overheating, so a correctly rated replacement is essential.

Specifications

OEM Part Number: B1370113
Type: Auxiliary / secondary limit switch
Trip Temperature: 120°F (opens on rise)
Fits Model: Goodman GMP100-3
Category: Limit Switch (Safety Control)
Brand: Goodman (OEM)

OEM vs. Generic

Limit switches are calibrated safety devices — the trip temperature and mounting must match the furnace exactly. This OEM B1370113 is set to the factory 120°F rating with the correct terminal and bracket geometry. A generic switch with the wrong setpoint can nuisance-trip or fail to protect the furnace. Always match OEM rating on safety controls.

Installation Difficulty

Easy — mounts with two screws and connects via spade terminals. Still, it is a safety component; a qualified technician should confirm the correct location and rating and test furnace operation after replacement.

Shut off gas and power before servicing. Verify your model and serial before ordering; contact info@nationalhvacparts.com for help.

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 120°F Auxiliary Limi...

$10.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GMP100-3 — B1370113?

Yes. This is the factory-specified OEM limit switch for the Goodman GMP100-3 — B1370113. 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 GMP100-3 — B1370113?

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.

Menu