What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH80704BNAC — B1370155 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 AMH80704BNAC — B1370155.

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 120°F Auxiliary Limit Switch for AMH80704BNAC — B1370155

Name: OEM Goodman 120°F Auxiliary Limit Switch for AMH80704BNAC — B1370155
Brand: Goodman
SKU: GOODMAN-5370
Price: 11.96 USD
Availability: InStock

SKU: GOODMAN-5370 Brand: Goodman

$11.96 $15.95

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The Goodman B1370155 Auxiliary Limit Switch is a genuine OEM safety control designed for AMH80704BNAC Goodman and Amana gas furnaces. Mounted near the burner or heat exchanger, this normally-closed switch opens at approximately 120°F to shut down the gas valve and blower circuit if it detects abnormal heat or a flame rollout condition — protecting your furnace and your home from overheating.

Specifications

Part Number: B1370155
Type: Auxiliary (rollout) limit switch
Trip Temperature: 120°F open on rise
Action: Normally closed, automatic reset
Compatibility: Goodman / Amana AMH80704BNAC and related 80% AFUE furnace platforms
Brand: Genuine OEM Goodman

OEM vs. Generic

This is a factory OEM part calibrated to the exact trip point Goodman engineered for the AMH80704BNAC. Generic aftermarket switches often carry loose temperature tolerances that cause nuisance lockouts or, worse, delayed tripping. Choosing the OEM B1370155 guarantees the correct set point, mounting footprint, and terminal spacing for a plug-and-play fit.

Installation Difficulty: Easy

Rated Easy (1/5). Turn off power and gas, disconnect the two spade terminals, remove the mounting screws, and swap in the new switch. Most technicians complete this in under 15 minutes. Always verify furnace operation and check for proper limit cycling after installation. If you are uncomfortable working near the gas valve or heat exchanger, consult a licensed HVAC technician.

Backed by genuine OEM quality — keep your Goodman or Amana furnace running safely and reliably.

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 120°F Auxiliary Limi...

$11.96

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH80704BNAC — B1370155?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH80704BNAC — B1370155. 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 AMH80704BNAC — B1370155?

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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