What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH81155CXAA — 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 AMH81155CXAA — 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 120F Auxiliary Limit Switch for AMH81155CXAA — B1370155

Name: OEM Goodman 120F Auxiliary Limit Switch for AMH81155CXAA — B1370155
Brand: Goodman
SKU: GOODMAN-6035
Price: 24.95 USD
Availability: InStock

SKU: GOODMAN-6035 Brand: Goodman

$24.95 $32.95

OEM Guaranteed

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30-Day Returns

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Texas CMBL #19328542014

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The Goodman B1370155 Auxiliary Limit Switch is a genuine OEM safety control designed for the Goodman/Amana AMH81155CXAA gas furnace and compatible 80% AFUE models. Mounted near the blower or heat exchanger, this auto-reset limit switch monitors air temperature and opens the control circuit if it senses an over-temperature condition, protecting the furnace and your home from overheating.

Specifications

Type: Auxiliary (secondary) limit switch
Trip point: 120°F (opens on rise)
Reset: Automatic
Terminal: 1/4" quick-connect spade
OEM Part Number: B1370155
Fits: AMH81155CXAA and select Goodman/Amana furnaces

OEM vs. Generic

The genuine OEM B1370155 is calibrated to Goodman's exact 120°F trip point, guaranteeing correct high-limit protection and preserving your equipment warranty. Aftermarket look-alikes often carry loose temperature tolerances that cause nuisance lockouts or, worse, fail to trip on time. For a critical safety component, OEM is the recommended choice.

Installation Difficulty

Easy (2/5). Disconnect power at the breaker, remove the two mounting screws, transfer the spade wires, and reinstall. Most homeowners with basic tools complete this in under 15 minutes. Always confirm power is off before servicing.

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 120F Auxiliary Limit...

$24.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH81155CXAA — B1370155?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH81155CXAA — 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 AMH81155CXAA — 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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