What are the specs for this Limit Switch?

The correct replacement for Goodman model GMT140-5D — B1370192 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 GMT140-5D — B1370192.

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 230°F Primary Limit Switch for GMT140-5D — B1370192

Name: OEM Goodman 230°F Primary Limit Switch for GMT140-5D — B1370192
Brand: Goodman
SKU: GOODMAN-12497
Price: 17.95 USD
Availability: InStock

SKU: GOODMAN-12497 Brand: Goodman

$17.95 $23.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Goodman B1370192 230°F Primary High-Limit Switch

The Goodman B1370192 is a genuine OEM primary high-limit switch built for the GMT140-5D gas furnace and compatible Goodman/Amana equipment. Positioned on the heat-exchanger bulkhead, this 230°F auto-reset control is the furnace's main overheat protector: it de-energizes the gas valve and burners if supply-air temperature climbs too high due to restricted airflow, a dirty filter, or a failing blower. A stuck-open primary limit is a frequent cause of no-heat and lockout faults.

Specifications

Trip temperature: 230°F (opens on rise)
Reset type: Automatic reset (closes on cool-down)
Circuit: Normally closed (N.C.)
Terminals: 1/4" quick-connect spade terminals
OEM Part Number: B1370192
Fits: Goodman GMT140-5D and select GMT/GMP furnace models

OEM vs. Generic

The Goodman OEM primary limit is factory-calibrated to the precise 230°F cutout your furnace's design airflow demands. Universal high-limit switches with adjustable or approximate setpoints can allow dangerous overheating or cause frustrating short cycling. For the main safety control, we strongly recommend the exact OEM part.

Installation Difficulty

Easy (1/5). Kill power, disconnect the two spade wires, remove the mounting screws, and fit the replacement in the same orientation. Expect 15 minutes or less. Always resolve airflow restrictions (filters, coils, blower) so the new limit isn't repeatedly tripped.

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 230°F Primary Limit ...

$17.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GMT140-5D — B1370192?

Yes. This is the factory-specified OEM limit switch for the Goodman GMT140-5D — B1370192. 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 GMT140-5D — B1370192?

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