What are the specs for this Limit Switch?

The correct replacement for Goodman model GDT070-3 — 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 GDT070-3 — 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 GDT070-3 — B1370155

Name: OEM Goodman 120°F Auxiliary Limit Switch for GDT070-3 — B1370155
Brand: Goodman
SKU: GOODMAN-10423
Price: 11.96 USD
Availability: InStock

SKU: GOODMAN-10423 Brand: Goodman

$11.96 $15.95

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 the OEM 120°F secondary high-limit control for your GDT070-3 gas furnace. Typically mounted on the blower deck, it protects against overheating in the blower compartment by interrupting the heating circuit if temperatures climb past the safe threshold — commonly triggered by restricted airflow or a failed blower.

Specifications

Trip temperature: 120°F
Reset type: Automatic reset (closes on temperature fall)
OEM Part Number: B1370155
Compatible model: Goodman GDT070-3 gas furnace
Function: Auxiliary / blower-compartment high-limit safety

OEM vs. Generic

The OEM Goodman limit is set to the precise 120°F cut-out point and matching terminal layout for correct sequencing. A generic switch with the wrong trip temperature can cause nuisance shutdowns or fail to protect the cabinet. For safety limits we recommend OEM.

Install Difficulty

Easy. Cut power to the furnace, disconnect the wire terminals, remove the mounting screws, and fit the new switch in the original location. Roughly 10–15 minutes. If the limit had been tripping, check the filter, blower, and ductwork for airflow restrictions first.

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...

$11.96

Frequently Asked Questions

Does this Limit Switch fit my Goodman GDT070-3 — B1370155?

Yes. This is the factory-specified OEM limit switch for the Goodman GDT070-3 — 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 GDT070-3 — 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