What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH80704BNAA Furnace — 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 AMH80704BNAA Furnace — 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.

IMAGE COMING SOON

Goodman

OEM Goodman 300°F Rollout Limit Switch for AMH80704BNAA Furnace — B1370145

Name: OEM Goodman 300°F Rollout Limit Switch for AMH80704BNAA Furnace — B1370145
Brand: Goodman
SKU: GOODMAN-5345
Price: 4.95 USD
Availability: InStock

SKU: GOODMAN-5345 Brand: Goodman

$4.95 $6.50

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

The Goodman B1370145 is a factory-OEM rollout limit switch engineered for the Amana/Goodman AMH80704BNAA gas furnace. Mounted on the burner box, this flame-rollout safety senses abnormal heat caused by a blocked heat exchanger or restricted flue and cuts power to the gas valve to prevent unsafe operation. Replacing a tripped or aged rollout switch restores your furnace's built-in safety chain.

Specifications

Trip temperature: 300°F (manual reset)
Type: Flame rollout / high-limit safety switch
Terminals: 1/4" quick-connect spade
OEM Part Number: B1370145
Fits: AMH80704BNAA and compatible Goodman/Amana 80% furnaces

OEM vs. Generic

Our genuine OEM Goodman switch is calibrated to the exact 300°F trip point specified by the manufacturer, guaranteeing the furnace's safety logic behaves as designed. Generic aftermarket switches often drift on trip temperature and can cause nuisance lockouts or, worse, fail to trip. For a UL-listed safety component, OEM is the recommended choice.

Installation

Difficulty: Easy (DIY-friendly). Power off the furnace at the disconnect, unplug the two spade terminals, remove the mounting screws, and swap in the new switch. Typical install time is under 10 minutes. Always verify with a manometer or licensed tech that the underlying cause of a rollout trip is corrected before returning the unit 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 300°F Rollout Limit ...

$4.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH80704BNAA Furnace — B1370145?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH80704BNAA Furnace — 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 AMH80704BNAA Furnace — 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.

Menu