What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH80903BNAA — 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 AMH80903BNAA — 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 High Limit Switch for AMH80903BNAA — B1370198

Name: OEM Goodman 150°F Primary High Limit Switch for AMH80903BNAA — B1370198
Brand: Goodman
SKU: GOODMAN-5697
Price: 12.95 USD
Availability: InStock

SKU: GOODMAN-5697 Brand: Goodman

$12.95 $16.95

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Goodman B1370198 Primary Limit Switch (150°F)

The B1370198 is a genuine OEM primary high-limit switch designed for the Goodman/Amana AMH80903BNAA gas furnace. Positioned on the heat exchanger deck, the primary limit is the furnace's main overheat guardian: it senses supply-air temperature and shuts down the burners if heat rises beyond safe levels due to insufficient airflow. This automatic-reset 150°F control is one of the most common furnace safeties to fail, showing up as no-heat, short cycling, or the burners lighting then dropping out.

Specifications

Trip temperature: 150°F (opens on rise)
Reset type: Automatic reset
Function: Primary high-limit overheat safety
Fits: Goodman/Amana AMH80903BNAA 80% gas furnace
OEM Part Number: B1370198
Terminals: 1/4" quick-connect spade

OEM vs. Generic

The genuine OEM Goodman part arrives pre-calibrated to the precise 150°F set point and correct disc size your furnace requires. Aftermarket snap-disc limits matched only by temperature can fit physically but may respond differently, leading to nuisance lockouts or delayed protection. Because this is the primary safety limit, we recommend installing the OEM component.

Install Difficulty: Easy

Rated Easy (1/5). Turn off power and gas, pull the two spade connectors, remove the mounting screws, and fit the new limit in the identical position and orientation. Roughly 15 minutes with basic hand tools. Cycle the furnace to confirm proper heating and shutdown.

Note: Persistent limit trips usually point to airflow restriction — inspect the filter, ductwork, and blower before condemning the switch.

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 High L...

$12.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH80903BNAA — B1370198?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH80903BNAA — 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 AMH80903BNAA — 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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