What are the specs for this Limit Switch?

The correct replacement for Goodman model DMS80904BNA — 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 DMS80904BNA — 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.

IMAGE COMING SOON

Goodman

OEM Goodman 120°F Auxiliary Limit Switch for DMS80904BNA — B1370155

Name: OEM Goodman 120°F Auxiliary Limit Switch for DMS80904BNA — B1370155
Brand: Goodman
SKU: GOODMAN-B1370155
Price: 21.95 USD
Availability: InStock

SKU: GOODMAN-B1370155 Brand: Goodman

$21.95 $28.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

The Goodman B1370155 Auxiliary Limit Switch is an OEM overheat-protection control for the DMS80904BNA furnace and compatible Goodman/Amana models. Positioned near the blower deck, this auto-reset switch opens at 120°F to interrupt the heating cycle when airflow across the heat exchanger is restricted — protecting components from thermal damage caused by a dirty filter, blocked returns, or a failing blower.

Specifications

Trip temperature: 120°F (open on rise)
Reset type: Automatic reset
Contact configuration: Normally closed (N.C.)
Function: Auxiliary / secondary high-limit protection
Fits: Goodman/Amana DMS80904BNA and compatible furnaces
OEM part number: B1370155

OEM vs. Generic

Genuine OEM switches are calibrated to the exact temperature and reset behavior your furnace's control board expects. Generic substitutes with the wrong trip point can cause short-cycling or fail to protect the unit. Because this is a safety limit, we recommend OEM for reliable, code-correct operation.

Installation Difficulty

Easy (1/5). Disconnect furnace power, note the two wire terminals, remove the mounting screw(s), and install the replacement in the same orientation. Typical replacement time is 10–15 minutes. Repeated tripping usually points to an airflow problem — check the filter and blower before assuming a bad switch.

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 120°F Auxiliary Limi...

$21.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman DMS80904BNA — B1370155?

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

Menu