What are the specs for this Limit Switch?

The correct replacement for Goodman model DMS81155CNA — 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 DMS81155CNA — 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 DMS81155CNA — B1370145

Name: OEM Goodman 300°F Rollout Limit Switch for DMS81155CNA — B1370145
Brand: Goodman
SKU: GOODMAN-9622
Price: 14.95 USD
Availability: InStock

SKU: GOODMAN-9622 Brand: Goodman

$14.95 $19.95

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Goodman B1370145 300°F Flame Rollout Switch

The genuine Goodman B1370145 is a 300°F manual-reset flame rollout switch that protects the DMS81155CNA and compatible Goodman/Amana furnaces. Mounted on the burner box, it opens the 24V circuit and shuts down the furnace if flames roll out of the heat exchanger — a condition caused by blocked flue, cracked heat exchanger, or poor draft. This is a critical safety device: a tripped or failed rollout switch should never be bypassed.

Specifications

OEM Part Number: B1370145
Trip Temperature: 300°F
Reset Type: Manual
Circuit: 24V normally-closed
Function: Flame rollout safety cutoff
Fits: Goodman DMS81155CNA and compatible furnaces

OEM vs. Generic

Because this is a life-safety component, OEM is strongly recommended. The genuine switch trips at the exact rated 300°F. Generic substitutes may have loose temperature tolerances that trip late — defeating the protection this switch exists to provide.

Install Difficulty

Easy to Moderate — Disconnect power, unplug the two spade terminals, remove the mounting screws, and install the replacement in the same orientation. If the switch tripped, always diagnose the root cause (draft, flue, heat exchanger) before restoring heat.

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 DMS81155CNA — B1370145?

Yes. This is the factory-specified OEM limit switch for the Goodman DMS81155CNA — 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 DMS81155CNA — 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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