What are the specs for this Limit Switch?

The correct replacement for Goodman model DHS80905CXA — 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 DHS80905CXA — 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.

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Goodman

OEM Goodman 120°F Auxiliary Limit Switch for DHS80905CXA — B1370155

Name: OEM Goodman 120°F Auxiliary Limit Switch for DHS80905CXA — B1370155
Brand: Goodman
SKU: GOODMAN-9485
Price: 34.95 USD
Availability: InStock

SKU: GOODMAN-9485 Brand: Goodman

$34.95 $44.95

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Goodman B1370155 Auxiliary Limit Switch (120°F)

The Goodman B1370155 is a genuine OEM auxiliary high-limit safety switch designed for the Goodman DHS80905CXA 80% AFUE gas furnace and compatible Goodman/Amana furnace platforms. This normally-closed thermal switch opens at approximately 120°F to shut down the burner or blower circuit if it detects abnormal heat, protecting the heat exchanger and surrounding cabinet from overheating. A failed or nuisance-tripping auxiliary limit is one of the most common causes of a furnace that starts, then shuts off on a safety lockout.

Specifications

Part Number: B1370155 (OEM Goodman)
Function: Auxiliary high-limit / thermal cutoff switch
Open Temperature: 120°F (auto-reset)
Contact Type: Normally closed (SPST)
Fits Model: Goodman DHS80905CXA and compatible furnaces
Brand: Goodman / Amana

OEM vs. Generic

This is a genuine OEM Goodman switch calibrated to the exact factory trip point and mounting footprint, so it drops in without wiring adapters or bracket modification. Universal aftermarket limit switches may carry a different trip temperature or terminal orientation, which can cause premature lockouts or fitment issues. For a safety-critical component, matching the OEM spec is strongly recommended.

Install Difficulty: Easy

Rated Easy (1 of 3). Replacement typically takes 10–15 minutes: disconnect power, note the two spade terminals, unscrew the switch from the burner box or blower deck, and swap in the new unit. Basic hand tools only. Always verify power is off at the disconnect before servicing.

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...

$34.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman DHS80905CXA — B1370155?

Yes. This is the factory-specified OEM limit switch for the Goodman DHS80905CXA — 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 DHS80905CXA — 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.

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