What are the specs for this Limit Switch?

The correct replacement for Goodman model AMS80905CXAA — B1370189 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 AMS80905CXAA — B1370189.

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 200F Primary Limit Switch for AMS80905CXAA — B1370189

Name: OEM Goodman 200F Primary Limit Switch for AMS80905CXAA — B1370189
Brand: Goodman
SKU: GOODMAN-7127
Price: 18.95 USD
Availability: InStock

SKU: GOODMAN-7127 Brand: Goodman

$18.95 $24.95

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Texas CMBL #19328542014

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The Goodman B1370189 Primary Limit Switch is a genuine OEM high-limit safety control designed for the AMS80905CXAA gas furnace and compatible Goodman/Amana equipment. Positioned on the heat exchanger housing, this 200°F primary limit continuously monitors supply-plenum temperature and de-energizes the gas valve if the furnace overheats due to low airflow or a stuck blower — preventing heat-exchanger stress and nuisance failures. Using the factory-spec switch keeps the 200°F trip point and mounting geometry exactly as engineered.

Specifications

Trip temperature: 200°F primary high-limit
Function: Heat-exchanger overheat protection
Reset type: Auto-reset on cool-down
Fits: Goodman/Amana AMS80905CXAA and related 80% furnaces
OEM Part Number: B1370189

OEM vs. Generic

The OEM option is the original Goodman-sourced limit for guaranteed calibration and fit. The Generic option is a tested aftermarket equivalent set to the same 200°F point, a smart choice for value-focused repairs.

Install Difficulty

Easy (1/5). Kill power and gas, remove the two mounting screws, transfer the wire terminals, and reinstall. Approximately 15 minutes for a qualified technician.

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 200F Primary Limit S...

$18.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMS80905CXAA — B1370189?

Yes. This is the factory-specified OEM limit switch for the Goodman AMS80905CXAA — B1370189. 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 AMS80905CXAA — B1370189?

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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