What are the specs for this Limit Switch?

The correct replacement for Goodman model DMS80904BNA — B1370145 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 DMS80904BNA — B1370145.

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 300°F Rollout Limit Switch for DMS80904BNA — B1370145

Name: OEM Goodman 300°F Rollout Limit Switch for DMS80904BNA — B1370145
Brand: Goodman
SKU: GOODMAN-B1370145
Price: 14.95 USD
Availability: InStock

SKU: GOODMAN-B1370145 Brand: Goodman

$14.95 $19.95

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The Goodman B1370145 Flame Rollout Limit Switch is a factory-specified safety control for the DMS80904BNA 80% gas furnace and many compatible Goodman/Amana models. Mounted on the burner assembly, this normally-closed manual-reset switch opens at 300°F to shut off the gas valve if flame rolls out of the burner box — protecting the heat exchanger and your home from overheating.

Specifications

Trip temperature: 300°F (open on rise)
Reset type: Manual pushbutton reset
Contact configuration: Normally closed (N.C.)
Function: Flame rollout / burner safety limit
Fits: Goodman/Amana DMS80904BNA and compatible 80% furnaces
OEM part number: B1370145

OEM vs. Generic

Our OEM Goodman switch matches the exact trip point, bracket geometry, and terminal spacing specified by the manufacturer — no re-wiring or bending required. Generic aftermarket rollout switches may nuisance-trip or fail to trip at the rated temperature, creating a genuine safety risk on a flame-sensing control. For a component this critical, we recommend OEM.

Installation Difficulty

Easy (1/5). Two spade terminals and a single mounting screw. Power down the furnace at the breaker, note wire positions, swap the switch, and restore power. Most installs take under 10 minutes. If the switch keeps tripping after replacement, have a technician inspect the heat exchanger and venting.

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 300°F Rollout Limit ...

$14.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman DMS80904BNA — B1370145?

Yes. This is the factory-specified OEM limit switch for the Goodman DMS80904BNA — B1370145. 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 DMS80904BNA — B1370145?

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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