What are the specs for this Limit Switch?

The correct replacement for Goodman model DDS80904BXA — B1370155 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 DDS80904BXA — B1370155.

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 120F Auxiliary Limit Switch for DDS80904BXA — B1370155

Name: OEM Goodman 120F Auxiliary Limit Switch for DDS80904BXA — B1370155
Brand: Goodman
SKU: GOODMAN-9450
Price: 11.96 USD
Availability: InStock

SKU: GOODMAN-9450 Brand: Goodman

$11.96 $15.95

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The Goodman B1370155 Auxiliary Limit Switch is a genuine OEM safety component designed for the DDS80904BXA gas furnace and compatible Goodman/Amana models. This normally-closed thermal switch monitors secondary heat-exchanger and rollout temperatures, opening the control circuit to shut down the burners if it senses an unsafe over-temperature condition. A failed or nuisance-tripping auxiliary limit is a leading cause of a furnace that lights briefly and then locks out on a flame or limit fault.

Specifications

Cutoff temperature: 120°F (auto-reset)
Function: Auxiliary / rollout over-temperature safety limit
Contact type: Normally closed (opens on rise)
Fits model: Goodman DDS80904BXA and select 80% AFUE furnaces
OEM part number: B1370155

OEM vs. Generic

Our OEM Goodman switch is calibrated to the exact factory trip point and mounting footprint, ensuring correct safety response and a plug-in fit with no rewiring. Universal generic limits often carry looser temperature tolerances and require terminal adaptation — acceptable in a pinch, but the OEM part is the safe, no-guesswork choice for a safety device.

Installation Difficulty

Easy (1/5) — Typically a single-screw mount with two push-on spade terminals. Always shut off gas and power at the disconnect before servicing. Most homeowners with basic tools can replace this in under 15 minutes.

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 120F Auxiliary Limit...

$11.96

Frequently Asked Questions

Does this Limit Switch fit my Goodman DDS80904BXA — B1370155?

Yes. This is the factory-specified OEM limit switch for the Goodman DDS80904BXA — B1370155. 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 DDS80904BXA — B1370155?

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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