What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH81155CNAA — 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 AMH81155CNAA — 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.

IMAGE COMING SOON

Goodman

OEM Goodman 120°F Auxiliary Limit Switch for AMH81155CNAA — B1370155

Name: OEM Goodman 120°F Auxiliary Limit Switch for AMH81155CNAA — B1370155
Brand: Goodman
SKU: GOODMAN-6002
Price: 18.95 USD
Availability: InStock

SKU: GOODMAN-6002 Brand: Goodman

$18.95 $24.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

The Goodman B1370155 is a genuine OEM 120°F auxiliary limit switch for the Goodman/Amana AMH81155CNAA gas furnace and compatible models. This normally-closed thermal switch is typically mounted on the blower housing or near the evaporator/blower deck and opens the control circuit if the temperature in that zone rises above safe limits — usually a sign of restricted airflow, a stuck blower, or a dirty filter.

When an auxiliary limit opens, the furnace shuts down heating to prevent overheating of the blower compartment. A switch that has failed open will keep the furnace from running; one that nuisance-trips points to an underlying airflow problem that should be corrected.

Trip temperature: 120°F (auxiliary/blower-deck limit)
Type: normally-closed thermal limit switch
Function: overheat protection for the blower compartment
Fit: Goodman/Amana AMH81155CNAA and compatible furnaces
OEM part number: B1370155

OEM vs. Generic: The auxiliary limit's trip point and mounting must match the furnace's airflow design. Generic substitutes with the wrong temperature rating cause either premature shutdowns or reduced overheat protection. This genuine Goodman B1370155 carries the correct 120°F factory calibration and exact bracket fit.

Install difficulty: Easy to Moderate. Kill power at the disconnect, remove the two mounting screws and the spade terminals, install the replacement in the same orientation, and reconnect the leads. As with any safety limit, confirm proper blower airflow and a clean filter before restoring the furnace to 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...

$18.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH81155CNAA — B1370155?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH81155CNAA — 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 AMH81155CNAA — 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.

Menu

OEM Goodman 120°F Auxiliary Limit Switch for AMH81155CNAA — B1370155

Shipping Information

Return Policy

Frequently Asked Questions