What are the specs for this Limit Switch?

The correct replacement for Goodman model GMPV125-5 — 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 GMPV125-5 — 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 for GMPV125-5 — B1370912S

Name: OEM Goodman 240°F Primary Limit Switch for GMPV125-5 — B1370912S
Brand: Goodman
SKU: GOODMAN-12179
Price: 24.95 USD
Availability: InStock

SKU: GOODMAN-12179 Brand: Goodman

$24.95 $32.95

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Genuine Goodman B1370912S 240°F Primary Limit Switch

The B1370912S is a factory-original primary high-limit safety switch for Goodman GMPV125-5 packaged gas/electric units and compatible Amana furnaces. Featuring a 7-inch sensing element and a 240°F trip point, this switch monitors heat-exchanger temperature and shuts off the gas valve if the furnace overheats — protecting against blower failures, restricted airflow, and dirty filters. A failed limit switch commonly causes no-heat, intermittent lockouts, or nuisance shutdowns.

Specifications

Trip temperature: 240°F (auto-reset high limit)
Probe length: 7 inches
Type: Bimetal SPST high-limit safety switch
Mount: Two-screw flange to heat-exchanger panel
Fits: Goodman GMPV125-5 and select Amana gas furnaces
OEM Part Number: B1370912S

OEM vs. Generic

The OEM B1370912S guarantees the exact 240°F set point, 7-inch probe depth, and flange pattern required for safe, code-compliant operation. A generic limit switch may differ in trip temperature or probe length, which can cause premature tripping or fail to protect the heat exchanger. For a safety device, OEM is strongly recommended.

Install Difficulty

Easy (2/5) — Disconnect power, remove two mounting screws, transfer the two spade terminals, and re-seat with the probe fully inserted into the airstream. About 15–20 minutes.

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 GMPV125-5 — B1370912S?

Yes. This is the factory-specified OEM limit switch for the Goodman GMPV125-5 — 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 GMPV125-5 — 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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