What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH81155CNAB — B1370198 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 AMH81155CNAB — B1370198.

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 150°F Primary Limit Switch for AMH81155CNAB — B1370198

Name: OEM Goodman 150°F Primary Limit Switch for AMH81155CNAB — B1370198
Brand: Goodman
SKU: GOODMAN-6014
Price: 12.95 USD
Availability: InStock

SKU: GOODMAN-6014 Brand: Goodman

$12.95 $16.95

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Goodman B1370198 Primary Limit Switch (150°F)

The Goodman B1370198 is a genuine OEM 150°F primary high-limit switch for the AMH81155CNAB furnace and compatible Goodman/Amana models. Mounted on the heat exchanger or supply plenum, this control continuously monitors discharge air temperature and shuts off the gas valve if the furnace overheats — the main defense against heat-exchanger damage from low airflow. When it fails, the furnace may short-cycle or stop heating entirely.

Specifications

Trip Temperature: 150°F
Type: Primary high-limit switch
Reset: Automatic (temperature-sensing)
Compatibility: AMH81155CNAB and related Goodman/Amana furnaces
OEM Part Number: B1370198

OEM vs. Generic

Because the primary limit governs the furnace's core safety shutoff, the genuine OEM B1370198 and its precise 150°F calibration matter. Substituting a switch with a different set point risks nuisance lockouts or unsafe over-temperature operation. OEM guarantees the correct trip point and mounting fit.

Installation Difficulty

Easy (2/5). Turn off gas and power, disconnect the wiring terminals, remove the two mounting screws, and install the replacement in the same orientation. About 15–20 minutes. Restore airflow (filter, blower, ducting) to avoid recurring trips.

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 150°F Primary Limit ...

$12.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH81155CNAB — B1370198?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH81155CNAB — B1370198. 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 AMH81155CNAB — B1370198?

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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