What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH80703ANAB — B1370187 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 AMH80703ANAB — B1370187.

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 160°F Primary Limit Switch for AMH80703ANAB — B1370187

Name: OEM Goodman 160°F Primary Limit Switch for AMH80703ANAB — B1370187
Brand: Goodman
SKU: GOODMAN-5281
Price: 10.95 USD
Availability: InStock

SKU: GOODMAN-5281 Brand: Goodman

$10.95 $14.95

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The Goodman B1370187 Primary Limit Switch is a genuine OEM high-limit safety control that fits the AMH80703ANAB gas furnace and compatible Goodman/Amana models. Mounted on the heat exchanger / plenum, this switch monitors supply-air temperature and opens the gas valve circuit if the furnace overheats — protecting the heat exchanger from cracking due to restricted airflow, a dirty filter, or a failed blower. A tripped or failed primary limit is one of the most frequent causes of no-heat and repeated furnace lockouts.

Specifications

Trip temperature: 160°F (auto-reset high limit)
Function: Primary heat-exchanger overheat protection
Configuration: Normally closed (opens on temperature rise)
Mounting: OEM snap-disc with factory bracket footprint
Compatibility: AMH80703ANAB and compatible Goodman/Amana furnaces

OEM vs. Generic

The OEM B1370187 is factory-calibrated to the precise 160°F set point specified for this furnace. Generic replacements often carry the wrong trip temperature or bracket geometry, leading to premature tripping, delayed protection, or improper mounting. Because this switch guards against a cracked heat exchanger, we strongly recommend the genuine OEM part.

Installation Difficulty

Easy (1/5) — Power off at the disconnect, disconnect the two spade terminals, remove the two mounting screws, install the replacement, and reconnect. A 10–15 minute job with basic hand tools.

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 160°F Primary Limit ...

$10.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH80703ANAB — B1370187?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH80703ANAB — 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 AMH80703ANAB — 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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