What are the specs for this Limit Switch?

The correct replacement for Goodman model GDI125-5 — B1370108 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 GDI125-5 — B1370108.

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 300°F Flame Rollout Limit Switch for GDI125-5 — B1370108

Name: OEM Goodman 300°F Flame Rollout Limit Switch for GDI125-5 — B1370108
Brand: Goodman
SKU: GOODMAN-10263
Price: 4.95 USD
Availability: InStock

SKU: GOODMAN-10263 Brand: Goodman

$4.95 $6.95

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Goodman B1370108 Flame Rollout Limit Switch (300°F)

The B1370108 is a genuine OEM Goodman 300°F flame rollout limit switch for GDI125-5 gas furnaces. Mounted on the burner assembly, this manual-reset safety switch shuts off the gas valve if flames roll out of the burner box — a critical protection against a cracked heat exchanger, blocked flue, or restricted combustion airflow. A tripped or failed rollout switch is a common reason a furnace locks out on ignition.

Specifications

OEM Part Number: B1370108
Trip Temperature: 300°F
Type: Manual-reset flame rollout limit switch
Compatible Model: Goodman GDI125-5 (furnace)
Brand: Goodman OEM

OEM vs. Generic

As a safety-critical component, the exact 300°F trip point is essential. This genuine Goodman OEM switch guarantees the correct rating and mounting fit. Avoid generic switches with mismatched temperatures — the wrong threshold defeats the protection this device provides.

Install Difficulty

Easy — 10 minutes. Cut power, unplug the two spade terminals, remove the mounting screws, and install the replacement in the same orientation.

Critical: a rollout switch trips for a reason. Always find and correct the root cause — heat exchanger crack, flue blockage, or combustion air restriction — before resetting or replacing it.

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 300°F Flame Rollout ...

$4.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GDI125-5 — B1370108?

Yes. This is the factory-specified OEM limit switch for the Goodman GDI125-5 — B1370108. 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 GDI125-5 — B1370108?

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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