What are the specs for this Limit Switch?

The correct replacement for Goodman model GUX100-5 — 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 GUX100-5 — 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 300F Flame Rollout Switch for GUX100-5 — B1370108

Name: OEM Goodman 300F Flame Rollout Switch for GUX100-5 — B1370108
Brand: Goodman
SKU: GOODMAN-13383
Price: 4.95 USD
Availability: InStock

SKU: GOODMAN-13383 Brand: Goodman

$4.95 $6.95

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Goodman B1370108 Flame Rollout Switch (300°F)

The B1370108 is a genuine OEM Goodman flame rollout switch designed for the GUX100-5 gas furnace. This manual-reset safety device mounts on the burner box and trips at 300°F if flames roll out of the combustion chamber — a condition caused by a cracked heat exchanger, blocked flue, or restricted combustion air. When it trips, it immediately cuts the gas valve and shuts the furnace down to prevent fire and carbon-monoxide hazards.

Specifications

Trip temperature: 300°F
Reset type: Manual (button reset)
Type: Normally-closed rollout safety switch
OEM Part Number: B1370108
Fits: Goodman GUX100-5 furnace platform

OEM vs. Generic

Because a rollout switch is a life-safety component, the exact 300°F trip point and mounting geometry matter. The genuine OEM B1370108 is calibrated to Goodman's safety specification; a mismatched generic could trip late and defeat the protection it exists to provide. For safety devices, always choose OEM.

Install Difficulty

Easy (1/5). A 10–15 minute swap: cut power and gas, remove the two mounting screws and spade terminals, install the new switch, and reconnect. Important: if a rollout switch has tripped, do not simply reset or replace it — have a technician diagnose the root cause (heat exchanger, flue, or airflow) before returning the furnace to service.

Never bypass a rollout switch. Disconnect power and gas before servicing.

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 300F Flame Rollout S...

$4.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GUX100-5 — B1370108?

Yes. This is the factory-specified OEM limit switch for the Goodman GUX100-5 — 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 GUX100-5 — 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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