What are the specs for this Limit Switch?

The correct replacement for Goodman model AMS80704BXA — 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 AMS80704BXA — 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 AMS80704BXA — B1370145

Name: OEM Goodman 300°F Rollout Limit Switch for AMS80704BXA — B1370145
Brand: Goodman
SKU: GOODMAN-6931
Price: 16.95 USD
Availability: InStock

SKU: GOODMAN-6931 Brand: Goodman

$16.95 $21.95

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The Goodman B1370145 is a genuine OEM flame rollout limit switch rated to trip at 300°F, engineered for the AMS80704BXA gas furnace and compatible Goodman and Amana models. Mounted on or near the burner assembly, this manual-reset safety device shuts off the gas valve if flames roll out of the heat exchanger or burner box — a critical protection against fire and carbon monoxide caused by a blocked flue or cracked heat exchanger.

Trip temperature: 300°F
Reset type: Manual (push-button)
Function: Flame rollout / high-temperature safety cutoff
Fits: AMS80704BXA and compatible Goodman/Amana furnaces
Part number: B1370145

OEM vs. Generic: Because this is a life-safety component, the genuine B1370145 is calibrated to the exact trip point Goodman engineered for this furnace. Generic switches with approximate ratings can trip late — defeating the purpose — or nuisance-trip early. We strongly recommend the OEM part for any safety circuit.

Install difficulty: Moderate. The switch is a two-wire spade-terminal component secured by one or two screws, but access can be tight and repeated rollout trips indicate a serious underlying problem. Never bypass a rollout switch. If the furnace trips this switch after replacement, stop use and have a licensed HVAC technician inspect the heat exchanger and venting immediately.

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 ...

$16.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMS80704BXA — B1370145?

Yes. This is the factory-specified OEM limit switch for the Goodman AMS80704BXA — 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 AMS80704BXA — 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 AMS80704BXA — B1370145

Shipping Information

Return Policy

Frequently Asked Questions