What are the specs for this Limit Switch?

The correct replacement for Goodman model AMS81155CXA — 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 AMS81155CXA — 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 AMS81155CXA — B1370155

Name: OEM Goodman 120°F Auxiliary Limit Switch for AMS81155CXA — B1370155
Brand: Goodman
SKU: GOODMAN-7187
Price: 24.95 USD
Availability: InStock

SKU: GOODMAN-7187 Brand: Goodman

$24.95 $32.95

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The Goodman B1370155 is a genuine OEM auxiliary limit switch rated at 120°F, built for the AMS81155CXA gas furnace and compatible Goodman/Amana models. This auto-reset safety device is typically mounted on the blower housing or near the return air path, monitoring for abnormal temperature rise that indicates restricted airflow or blower failure.

When the auxiliary limit senses excess heat, it interrupts the control circuit to shut the furnace down, then automatically resets once temperatures return to normal. A failed switch can cause intermittent shutdowns or prevent the furnace from firing at all.

Trip Temperature: 120°F
Reset Type: Automatic
Function: Auxiliary high-temperature limit
Fits: Goodman AMS81155CXA and compatible furnaces
OEM Part #: B1370155

OEM vs. Generic: The genuine Goodman part matches the exact 120°F setpoint, mounting footprint, and terminal orientation of the original. Generic alternatives are more affordable and fit many furnaces, but calibration and bracket fit can differ. For dependable overheat protection, OEM is the safe choice.

Install Difficulty: Easy (2/5). Cut power at the disconnect, remove the two mounting screws, transfer the spade connectors, and secure the new switch in the same orientation. Only a nut driver is required.

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...

$24.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMS81155CXA — B1370155?

Yes. This is the factory-specified OEM limit switch for the Goodman AMS81155CXA — 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 AMS81155CXA — 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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OEM Goodman 120°F Auxiliary Limit Switch for AMS81155CXA — B1370155

Shipping Information

Return Policy

Frequently Asked Questions