What are the specs for this Limit Switch?

The correct replacement for Goodman model GUI100-2 — 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 GUI100-2 — 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 Switch for GUI100-2 — B1370108

Name: OEM Goodman 300°F Flame Rollout Switch for GUI100-2 — B1370108
Brand: Goodman
SKU: GOODMAN-13076
Price: 4.95 USD
Availability: InStock

SKU: GOODMAN-13076 Brand: Goodman

$4.95 $6.95

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Goodman B1370108 Flame Rollout Switch

The B1370108 is a genuine OEM manual-reset flame rollout switch rated to trip at 300°F, used on the Goodman GUI100-2 gas furnace. Mounted on the burner assembly, it is a critical safety limit: if flames roll out of the burner box due to a blocked flue, cracked heat exchanger, or restricted combustion air, the switch opens and shuts down the gas valve to prevent overheating and fire. When it trips, it must be manually reset — repeat trips indicate an underlying combustion problem that should be diagnosed.

Specifications

Trip temperature: 300°F (open on rise)
Reset: manual (push-button)
Function: flame rollout / high-limit safety cutout
Fits: Goodman GUI100-2 furnace
OEM part number: B1370108

OEM vs. Generic

Because this is a life-safety device, the exact trip point and bracket geometry matter. The OEM B1370108 is calibrated to Goodman's certified 300°F setpoint and mounts flush against the burner assembly for accurate sensing. Generic switches may carry a different setpoint or loose fit that delays trip response — not worth the risk on a safety control.

Installation Difficulty

Easy. Disconnect power and gas, unplug the two spade terminals, remove one or two screws, and swap. About 10–15 minutes. If the new switch trips again, stop and inspect the heat exchanger and venting.

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 GUI100-2 — B1370108?

Yes. This is the factory-specified OEM limit switch for the Goodman GUI100-2 — 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 GUI100-2 — 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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