What are the specs for this Limit Switch?

The correct replacement for Goodman model AMEH800805 — 20162903 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 AMEH800805 — 20162903.

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 150°F Primary Limit Switch for AMEH800805 — 20162903

Name: OEM Goodman 150°F Primary Limit Switch for AMEH800805 — 20162903
Brand: Goodman
SKU: GOODMAN-4426
Price: 18.95 USD
Availability: InStock

SKU: GOODMAN-4426 Brand: Goodman

$18.95 $24.95

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The Goodman 20162903 Primary Limit Switch is a genuine OEM high-temperature safety control for the Amana/Goodman AMEH800805CNAA gas furnace. This normally-closed thermal switch opens at approximately 150°F to cut power to the gas valve if the heat exchanger overheats — a critical safety device that protects against cracked heat exchangers and fire hazards from restricted airflow or blower failure.

Specifications

Type: Primary high-limit / thermal cut-off
Trip temperature: 150°F (auto-reset)
Configuration: Normally closed
Fitment: Amana/Goodman AMEH800805CNAA furnace
OEM Part Number: 20162903

OEM vs. Generic

This is a factory-calibrated OEM switch with the exact trip point and mounting bracket your furnace requires. Because a limit switch is a safety component, using the correct OEM trip temperature is essential — a generic switch with the wrong setpoint can nuisance-trip (short cycling) or, worse, fail to protect the heat exchanger. Insist on OEM for safety-critical controls.

Install Difficulty

Easy (2/5). Cut power, remove the two mounting screws, disconnect the spade terminals, and swap in the new switch. Roughly a 10–15 minute repair. Always confirm proper airflow and filter condition, since a tripping limit often signals an underlying airflow problem.

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 150°F Primary Limit ...

$18.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMEH800805 — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman AMEH800805 — 20162903. 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 AMEH800805 — 20162903?

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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