What are the specs for this Limit Switch?

The correct replacement for Goodman model AMS80704BNA — B1370145 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 AMS80704BNA — B1370145.

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 Rollout Limit Switch for AMS80704BNA — B1370145

Name: OEM Goodman 300°F Rollout Limit Switch for AMS80704BNA — B1370145
Brand: Goodman
SKU: GOODMAN-6911
Price: 14.95 USD
Availability: InStock

SKU: GOODMAN-6911 Brand: Goodman

$14.95 $19.95

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Genuine OEM Goodman B1370145 is a 300°F flame-rollout limit switch engineered for the AMS80704BNA gas furnace and compatible Goodman/Amana models. Mounted near the burner box, this manual-reset safety switch senses heat from flame rollout — a dangerous condition where flames escape the heat exchanger — and instantly cuts power to the gas valve to prevent overheating and fire hazard.

If your furnace repeatedly trips on a rollout fault, or the switch is stuck open, replacing it with the correct OEM part restores proper safety protection. Never bypass or jumper a rollout switch.

Part number: B1370145
Trip temperature: 300°F (opens on rise)
Reset type: Manual reset
Function: Flame-rollout safety cutout
Fits: Goodman AMS80704BNA and compatible furnaces

OEM vs. Generic: Because this is a life-safety device, the genuine Goodman switch is calibrated to the exact 300°F trip point and mounting geometry required by the furnace design. Generic switches may have incorrect trip temperatures, slower response, or poor bracket fit — compromising the very protection the part exists to provide. Always use OEM for rollout and limit safety controls.

Install difficulty: Moderate — straightforward for a handy homeowner or technician. Disconnect furnace power, note the wire positions, remove the two mounting screws, transfer the terminals to the new switch, and reinstall. Verify normal furnace operation and confirm the switch is closed at room temperature after installation.

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 Rollout Limit ...

$14.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMS80704BNA — B1370145?

Yes. This is the factory-specified OEM limit switch for the Goodman AMS80704BNA — B1370145. 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 AMS80704BNA — B1370145?

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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OEM Goodman 300°F Rollout Limit Switch for AMS80704BNA — B1370145

Shipping Information

Return Policy

Frequently Asked Questions