What are the specs for this Limit Switch?

The correct replacement for Goodman model AMS80453ANA — B1370190 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 AMS80453ANA — B1370190.

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 210°F Primary Limit Switch for AMS80453ANA — B1370190

Name: OEM Goodman 210°F Primary Limit Switch for AMS80453ANA — B1370190
Brand: Goodman
SKU: GOODMAN-6742
Price: 22.95 USD
Availability: InStock

SKU: GOODMAN-6742 Brand: Goodman

$22.95 $29.95

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The Goodman B1370190 Primary Limit Switch is a genuine OEM main high-limit safety control for the AMS80453ANA furnace and compatible Goodman/Amana 80% AFUE models. Mounted on the heat-exchanger/burner bulkhead, this 210°F auto-reset switch protects the furnace from overheating when airflow across the heat exchanger drops. When it opens, the gas valve de-energizes and the blower continues to purge heat—preventing heat-exchanger damage and cracking.

Specifications

Trip temperature: 210°F (opens on rise)
Reset type: Automatic reset
Function: Primary high-limit / airflow safety
Terminals: 1/4" male quick-connect
Fits: Goodman/Amana AMS80453ANA and compatible furnaces
OEM Part #: B1370190

OEM vs. Generic

The OEM Goodman B1370190 delivers the precise 210°F setpoint and factory-matched mounting for guaranteed fit and safety-listing compliance. Our generic equivalent matches the temperature rating and terminal layout at a lower cost—a smart choice for out-of-warranty repairs. Both are new units.

Installation Difficulty

Easy (1/5). Turn off power and gas, pull the two spade terminals, remove the mounting screws, and install the replacement in the same orientation. Roughly a 15-minute job. Repeated trips usually point to a dirty filter, undersized ductwork, or a weak blower—address airflow first.

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 210°F Primary Limit ...

$22.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMS80453ANA — B1370190?

Yes. This is the factory-specified OEM limit switch for the Goodman AMS80453ANA — B1370190. 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 AMS80453ANA — B1370190?

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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