What are the specs for this Limit Switch?

The correct replacement for Goodman model AMS80905CXA — B1370189 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 AMS80905CXA — B1370189.

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 200F Primary Limit Switch for AMS80905CXA — B1370189

Name: OEM Goodman 200F Primary Limit Switch for AMS80905CXA — B1370189
Brand: Goodman
SKU: GOODMAN-7116
Price: 9.95 USD
Availability: InStock

SKU: GOODMAN-7116 Brand: Goodman

$9.95 $12.95

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Goodman B1370189 Primary Limit Switch (200°F)

The B1370189 is the genuine OEM primary high-limit safety switch for the Goodman/Amana AMS80905CXA gas furnace and compatible 80% AFUE models. Mounted on the heat-exchanger/plenum area, this normally-closed control monitors supply-air temperature and opens the burner circuit at approximately 200°F if the furnace overheats — the classic symptom of restricted airflow. It is your furnace's primary defense against a cracked heat exchanger and overheat damage.

Specifications

Open temperature: 200°F (auto-reset)
Type: Normally-closed primary high-limit switch
Terminals: 1/4" quick-connect spade
Mounting: Flange/bracket-mount, direct OEM fit
Fits: Goodman & Amana AMS80905CXA and related 80% furnaces

OEM vs. Generic

Because the primary limit protects the heat exchanger, precise calibration matters. This factory-original Goodman switch is set to the exact 200°F trip point the OEM engineered for this cabinet's airflow. Generic substitutes may trip early (causing short-cycling and no heat) or late (allowing dangerous overheating). Choose OEM for reliable, code-correct protection.

Installation Difficulty

Easy (1/5). Kill power at the breaker, note and disconnect the two wire leads, remove the mounting screws, and install the replacement in the same orientation. Typically a 10–15 minute job. If the new limit still trips, the root cause is almost always airflow — replace a clogged filter, open closed registers, and verify blower operation before condemning the switch again.

Keep your furnace running safely with a genuine Goodman B1370189 primary limit.

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 200F Primary Limit S...

$9.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMS80905CXA — B1370189?

Yes. This is the factory-specified OEM limit switch for the Goodman AMS80905CXA — B1370189. 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 AMS80905CXA — B1370189?

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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