What are the specs for this Limit Switch?

The correct replacement for Goodman model AMS80703AXA — 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 AMS80703AXA — 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 AMS80703AXA — B1370155

Name: OEM Goodman 120°F Auxiliary Limit Switch for AMS80703AXA — B1370155
Brand: Goodman
SKU: GOODMAN-6889
Price: 11.96 USD
Availability: InStock

SKU: GOODMAN-6889 Brand: Goodman

$11.96 $15.99

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The Goodman B1370155 is a genuine OEM 120°F auxiliary limit switch for AMS80703AXA 80% AFUE gas furnaces. This secondary high-limit is typically mounted on the blower deck or near the coil and cuts power if the cabinet overheats due to restricted airflow — a clogged filter, closed dampers, seized blower, or blocked return. It backs up the main limit and helps prevent heat-exchanger damage from chronic overheating.

Trip temperature: 120°F (opens on rise)
Type: Auxiliary / secondary high-limit
Reset type: Auto-reset (closes when cooled) unless otherwise specified
Terminals: Standard 1/4" spade connections
Fits: AMS80703AXA and compatible Goodman/Amana furnaces

OEM vs. Generic: The B1370155 uses Goodman's exact 120°F calibration and mounting geometry, so it protects at the engineered setpoint and seats flush against the deck for accurate sensing. Generic substitutes with different trip points or bracket shapes can cause nuisance shutdowns or delayed protection.

Installation difficulty: Easy. A 10–20 minute repair: disconnect power, photograph the wiring, unbolt the old switch, mount the replacement in the same orientation for good thermal contact, and reconnect the terminals. If the original tripped, correct the airflow restriction before restoring operation.

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 AMS80703AXA — B1370155?

Yes. This is the factory-specified OEM limit switch for the Goodman AMS80703AXA — 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 AMS80703AXA — 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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OEM Goodman 120°F Auxiliary Limit Switch for AMS80703AXA — B1370155

Shipping Information

Return Policy

Frequently Asked Questions