What are the specs for this Limit Switch?

The correct replacement for Goodman model GUS100-4 — 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 GUS100-4 — 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.

IMAGE COMING SOON

Goodman

OEM Goodman 300F Flame Rollout Switch for GUS100-4 — B1370108

Name: OEM Goodman 300F Flame Rollout Switch for GUS100-4 — B1370108
Brand: Goodman
SKU: GOODMAN-13347
Price: 4.95 USD
Availability: InStock

SKU: GOODMAN-13347 Brand: Goodman

$4.95 $6.75

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

The Goodman B1370108 Flame Rollout Switch is the genuine OEM 300°F manual-reset safety limit for the GUS100-4 gas furnace. Mounted at the burner box, it senses flame that rolls out of the combustion chamber — a sign of a blocked heat exchanger or restricted venting — and instantly cuts power to the gas valve to prevent a fire hazard. A tripped or open rollout switch is a hard no-heat lockout, and this is the exact replacement.

Part Number: B1370108
Type: Flame rollout limit switch, manual reset
Trip Point: 300°F open
Fits: Goodman GUS100-4 gas furnace
Function: De-energizes gas valve on flame rollout

OEM vs. Generic

This genuine Goodman switch is calibrated to the exact 300°F trip point and uses the correct bracket and terminal spacing for a bolt-in fit. Because this is a life-safety device, matching the OEM temperature rating is essential — a generic switch with the wrong trip point can nuisance-trip or, worse, fail to protect. Always replace rollout switches with the specified OEM part.

Installation Difficulty

Easy (1/5). Cut power and gas, remove two screws, unplug the two spade terminals, and mount the new switch. Under 15 minutes. Important: a repeatedly tripping rollout switch signals an underlying combustion problem — have the heat exchanger and venting inspected before returning the furnace to service.

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 GUS100-4 — B1370108?

Yes. This is the factory-specified OEM limit switch for the Goodman GUS100-4 — 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 GUS100-4 — 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.

Menu