What are the specs for this Limit Switch?

The correct replacement for Goodman model DMS81405DNA — 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 DMS81405DNA — 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 DMS81405DNA — B1370145

Name: OEM Goodman 300°F Rollout Limit Switch for DMS81405DNA — B1370145
Brand: Goodman
SKU: GOODMAN-9633
Price: 4.95 USD
Availability: InStock

SKU: GOODMAN-9633 Brand: Goodman

$4.95 $6.49

OEM Guaranteed

Same-Day Ship

30-Day Returns

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Texas CMBL #19328542014

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Govt POs Accepted

The Goodman B1370145 flame rollout switch is a genuine OEM 300°F manual-reset safety limit for DMS81405DNA furnaces. Mounted on the burner box, it opens the ignition circuit if flame rolls out of the heat exchanger — a critical safety response to a blocked flue, cracked heat exchanger, or failing inducer. A tripped or aged rollout switch will lock out the furnace and must be replaced with the correct temperature rating.

Specifications

Trip temperature: 300°F (open on rise)
Reset: Manual (push-button)
Type: Normally-closed safety limit switch
Terminals: 1/4" quick-connect
Fitment: Goodman DMS81405DNA and compatible furnaces
OEM Part Number: B1370145

OEM vs. Generic

Because this is a life-safety device, the OEM Goodman switch guarantees the exact 300°F calibration and mounting footprint. Generic switches may carry different trip points or reset behavior, defeating the protection Goodman engineered. We recommend OEM only for rollout switches.

Installation Difficulty

Easy (10–15 min). Cut power, unplug the two spade terminals, remove the mounting screws, and swap in the new switch. Important: if this switch tripped, diagnose and correct the root cause (flue blockage / heat exchanger) before returning the unit to service.

Genuine OEM. Restores factory 300°F rollout protection on the DMS81405DNA.

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 ...

$4.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman DMS81405DNA — B1370145?

Yes. This is the factory-specified OEM limit switch for the Goodman DMS81405DNA — 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 DMS81405DNA — 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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