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Goodman

OEM Goodman 160F Primary Limit Switch for AMS80703ANAA Furnace — B1370187

SKU: GOODMAN-6882 Brand: Goodman
$10.95 $14.25

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The Goodman B1370187 Primary Limit Switch is a genuine OEM high-limit control for the Goodman/Amana AMS80703ANAA gas furnace. Positioned over the heat exchanger, this primary limit opens at 160°F to shut down the burners if supply-air temperature climbs too high — the furnace's main defense against a cracked or overheating heat exchanger caused by low airflow.

Specifications

  • Trip temperature: 160°F (open on rise)
  • Reset type: Auto-reset (closes on temperature drop)
  • Function: Primary high-limit / heat-exchanger overheat protection
  • Fits model: AMS80703ANAA and compatible 80% AFUE Goodman/Amana furnaces
  • OEM Part Number: B1370187

OEM vs. Generic

The OEM Goodman primary limit is factory-calibrated to the exact 160°F trip point and insertion depth for this cabinet. Because the primary limit is the furnace's core safety cutoff, we recommend genuine OEM over generic universal limits that may differ in trip temperature, probe length, or bracket fit.

Installation Difficulty

Easy (1/5). Shut off power, disconnect the two terminals, remove the two mounting screws, and seat the new limit at the same depth and orientation. Roughly 15 minutes. Always diagnose the airflow restriction that caused the trip before returning the furnace to service.

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

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMS80703ANAA Furnace — B1370187?
Yes. This is the factory-specified OEM limit switch for the Goodman AMS80703ANAA Furnace — B1370187. 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 — B1370187?
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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Mike Rivera
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