What are the specs for this Limit Switch?

The correct replacement for Goodman model AMS81155CXAA — 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 AMS81155CXAA — 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 AMS81155CXAA — B1370155

Name: OEM Goodman 120°F Auxiliary Limit Switch for AMS81155CXAA — B1370155
Brand: Goodman
SKU: GOODMAN-7198
Price: 11.96 USD
Availability: InStock

SKU: GOODMAN-7198 Brand: Goodman

$11.96 $15.95

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The Goodman B1370155 Auxiliary Limit Switch is the genuine OEM 120°F auto-reset high-limit control for the AMS81155CXAA 80% AFUE furnace and compatible Goodman/Amana models. Typically mounted near the blower or coil area, this secondary limit protects against overheating from restricted airflow, a dirty filter, or blower failure by interrupting the heat call.

Specifications

Part type: Auxiliary / secondary high-limit switch
Trip temperature: 120°F (open on rise)
Reset: Automatic
OEM Part Number: B1370155
Fits model: AMS81155CXAA (80% AFUE furnace)
Brand: Goodman / Amana (Daikin family)
Category: Limit Switch (Safety)

OEM vs. Generic

OEM B1370155 is calibrated to the precise 120°F set point and bracket layout your furnace requires. Aftermarket limits with a different trip temperature can cause short-cycling or fail to protect the equipment. For an airflow-safety control, genuine OEM is the right choice.

Why Replace It

A weak or failed auxiliary limit causes intermittent shutdowns or short-cycling on the heat call. Replacing it restores dependable overheat protection — but first clear any airflow restriction (filter, blower, ductwork) that may be tripping it.

Install difficulty: Easy. Roughly 15 minutes: disconnect power, remove the mounting screws and spade terminals, and install the replacement. Confirm normal cycling after 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 120°F Auxiliary Limi...

$11.96

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMS81155CXAA — B1370155?

Yes. This is the factory-specified OEM limit switch for the Goodman AMS81155CXAA — 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 AMS81155CXAA — 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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