What are the specs for this Limit Switch?

The correct replacement for Goodman model DDS81155CXA — B1370194 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 DDS81155CXA — B1370194.

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 250°F Primary Limit Switch for DDS81155CXA — B1370194

Name: OEM Goodman 250°F Primary Limit Switch for DDS81155CXA — B1370194
Brand: Goodman
SKU: GOODMAN-9459
Price: 59.95 USD
Availability: InStock

SKU: GOODMAN-9459 Brand: Goodman

$59.95 $79.95

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The genuine Goodman B1370194 is a 250°F primary high-limit switch engineered for the Goodman DDS81155CXA gas furnace and compatible Goodman and Amana models. Mounted on the heat exchanger or burner bulkhead, this auto-reset switch is the furnace's main overheat safety. If supply-air temperature exceeds 250°F — usually from restricted airflow, a dirty filter, or a failing blower — it opens the gas valve circuit to protect the heat exchanger from cracking and prevent a fire hazard.

Trip Temperature: 250°F
Type: Primary auto-reset high-limit switch
Contacts: Normally closed, opens on overtemperature
Fit: Direct OEM replacement for DDS81155CXA
Brand: Goodman / Amana genuine OEM

OEM vs. Generic

The genuine Goodman B1370194 is calibrated to open at exactly 250°F, matching the DDS81155CXA control design and the heat exchanger's safe operating window. A generic high-limit with the wrong temperature rating either nuisance-trips (no heat) or fails to protect the exchanger (safety risk). OEM units also match the mounting depth and bracket, so probe insertion into the airstream is correct. For your furnace's most important safety device, use the genuine part.

Installation Difficulty: Moderate (3/5)

Turn off power and gas, remove the two mounting screws, and carefully withdraw the sensing element from the airstream. Transfer the wire connectors, install the new switch to the same depth and orientation, and reassemble. If the old limit tripped, correct the airflow restriction first — a repeatedly tripping high-limit indicates a serious problem.

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 250°F Primary Limit ...

$59.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman DDS81155CXA — B1370194?

Yes. This is the factory-specified OEM limit switch for the Goodman DDS81155CXA — B1370194. 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 DDS81155CXA — B1370194?

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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