What are the specs for this Limit Switch?

The correct replacement for Goodman model AMS80703ANAA Furnace — 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 AMS80703ANAA Furnace — 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 120F Auxiliary Limit Switch for AMS80703ANAA Furnace — B1370155

Name: OEM Goodman 120F Auxiliary Limit Switch for AMS80703ANAA Furnace — B1370155
Brand: Goodman
SKU: GOODMAN-6881
Price: 11.96 USD
Availability: InStock

SKU: GOODMAN-6881 Brand: Goodman

$11.96 $15.55

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The Goodman B1370155 Auxiliary Limit Switch is a genuine OEM overheat-protection control for the Goodman/Amana AMS80703ANAA gas furnace. Mounted on the blower housing, this auxiliary limit opens at 120°F to cut off burner operation if heat backs up into the blower compartment — protecting the motor, wiring, and heat exchanger when airflow is restricted by a dirty filter or failing blower.

Specifications

Trip temperature: 120°F (open on rise)
Reset type: Auto-reset (closes on temperature drop)
Function: Blower-compartment auxiliary overheat limit
Fits model: AMS80703ANAA and compatible Goodman/Amana furnaces
OEM Part Number: B1370155

OEM vs. Generic

The OEM Goodman auxiliary limit is matched to the furnace's exact trip point and mounting location. Generic substitutes often carry different temperature ratings that can cause nuisance shutdowns or, worse, fail to protect at the correct threshold. For proper safety-circuit behavior, choose OEM.

Installation Difficulty

Easy (1/5). Cut power at the disconnect, pull the two wire terminals, remove the mounting screws, and install the replacement in the same position. About 10–15 minutes. If the switch is tripping repeatedly, inspect airflow and blower operation before assuming the part has failed.

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 120F Auxiliary Limit...

$11.96

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMS80703ANAA Furnace — B1370155?

Yes. This is the factory-specified OEM limit switch for the Goodman AMS80703ANAA Furnace — 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 AMS80703ANAA Furnace — 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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