What are the specs for this Limit Switch?

The correct replacement for Goodman model AMS81405DXA Furnace — 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 AMS81405DXA Furnace — 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 AMS81405DXA Furnace — B1370198

Name: OEM Goodman 150°F Primary Limit Switch for AMS81405DXA Furnace — B1370198
Brand: Goodman
SKU: GOODMAN-7280
Price: 27.95 USD
Availability: InStock

SKU: GOODMAN-7280 Brand: Goodman

$27.95 $36.95

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Goodman B1370198 Primary Limit Switch (150°F)

The B1370198 is a genuine OEM primary limit switch engineered for Goodman and Amana gas furnaces, including the AMS81405DXA model. This safety-critical control monitors heat-exchanger and plenum temperature, opening the gas valve and burner circuit if the furnace overheats due to restricted airflow, a dirty filter, or a failed blower. A correctly rated limit switch protects the heat exchanger and prevents nuisance shutdowns.

Specifications

Trip temperature: 150°F (auto-reset)
Type: Primary / high-limit thermal switch
Fit: Direct OEM replacement — no rewiring or drilling
Compatible model: AMS81405DXA and related Goodman/Amana furnaces
Equipment: Gas furnace

OEM vs. Generic

Our OEM Goodman B1370198 is calibrated to the exact factory trip point and mounting bracket, guaranteeing correct clearance and safe operation. Generic universal limits often carry a different set point or bracket footprint, which can cause premature tripping or improper seating. For a safety device, we recommend the OEM part.

Installation Difficulty

Easy (2/5). Two mounting screws and two spade connectors. Always shut off power and gas before servicing. Typical replacement time is under 20 minutes for a comfortable DIYer; consult a licensed HVAC technician if you are unsure.

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 ...

$27.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMS81405DXA Furnace — B1370198?

Yes. This is the factory-specified OEM limit switch for the Goodman AMS81405DXA Furnace — 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 AMS81405DXA Furnace — 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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