What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH81155CNAC — 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 AMH81155CNAC — 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 AMH81155CNAC — B1370155

Name: OEM Goodman 120°F Auxiliary Limit Switch for AMH81155CNAC — B1370155
Brand: Goodman
SKU: GOODMAN-6024
Price: 11.96 USD
Availability: InStock

SKU: GOODMAN-6024 Brand: Goodman

$11.96 $15.95

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The Goodman B1370155 Auxiliary Limit Switch is the genuine OEM 120°F auto-reset overheat safety for the AMH81155CNAC gas furnace. Located in the blower/return-air compartment, it opens the control circuit if temperatures rise abnormally — protecting the furnace from a stuck blower, blocked filter, or restricted airflow. It resets automatically once the compartment cools.

Specifications

Trip temperature: 120°F
Reset: Automatic
Function: Auxiliary/blower-compartment overheat limit
Fits: Goodman/Amana AMH81155CNAC furnaces
Brand: Goodman OEM (B1370155)

OEM vs. Generic

The OEM switch provides the precise 120°F set point and mounting profile specified for this cabinet. The generic equivalent offers the same rating and terminals at a budget price.

Installation Difficulty

Easy. Mounts with screws and slide-on terminals in about 10 minutes. If it keeps tripping, check the filter and blower before assuming the switch is bad.

Safety component — do not bypass. Disconnect power before servicing. Professional installation recommended.

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 AMH81155CNAC — B1370155?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH81155CNAC — 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 AMH81155CNAC — 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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