What are the specs for this Limit Switch?

The correct replacement for Goodman model AMS80905CXAA — 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 AMS80905CXAA — 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 300F Rollout Limit Switch for AMS80905CXAA — B1370145

Name: OEM Goodman 300F Rollout Limit Switch for AMS80905CXAA — B1370145
Brand: Goodman
SKU: GOODMAN-7125
Price: 12.95 USD
Availability: InStock

SKU: GOODMAN-7125 Brand: Goodman

$12.95 $16.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

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Texas CMBL #19328542014

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Govt POs Accepted

The Goodman B1370145 Rollout Limit Switch is a genuine OEM safety control engineered for the AMS80905CXAA gas furnace and compatible Goodman/Amana models. This manual-reset switch monitors the burner box for flame rollout — an abnormal condition where flames escape the combustion chamber — and instantly interrupts the gas valve and ignition circuit to protect your equipment and home. Because it is a factory-spec part, it delivers the exact 300°F trip point and mounting footprint your control board expects.

Specifications

Trip temperature: 300°F (auto-open on rollout)
Reset type: Manual push-button
Function: Flame rollout safety limit
Fits: Goodman/Amana AMS80905CXAA and related 80% furnaces
OEM Part Number: B1370145

OEM vs. Generic

Our OEM option is the identical Goodman-sourced part for guaranteed fit and trip accuracy. Our Generic option is a tested aftermarket equivalent rated to the same 300°F set point at a lower price point — ideal for budget repairs where an exact OEM stamp isn't required.

Install Difficulty

Easy (1/5). Two spade terminals and one or two mounting screws. Always shut off gas and power before servicing. Typical replacement time is under 15 minutes for a qualified technician.

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 Rollout Limit S...

$12.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMS80905CXAA — B1370145?

Yes. This is the factory-specified OEM limit switch for the Goodman AMS80905CXAA — 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 AMS80905CXAA — 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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