What are the specs for this Limit Switch?

The correct replacement for Goodman model AMEC800603BXAB — 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 AMEC800603BXAB — 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 150F Primary Limit Switch for AMEC800603BXAB — 20162903

Name: OEM Goodman 150F Primary Limit Switch for AMEC800603BXAB — 20162903
Brand: Goodman
SKU: GOODMAN-3816
Price: 8.95 USD
Availability: InStock

SKU: GOODMAN-3816 Brand: Goodman

$8.95 $11.99

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Goodman 20162903 Primary High-Limit Switch (150°F)

The 20162903 is the OEM primary high-limit safety switch for the Goodman/Amana AMEC800603BXAB gas furnace. Mounted on the heat exchanger housing, this normally-closed thermal switch opens at its 150°F trip point to cut the gas valve and protect against overheating from restricted airflow, a failed blower, or a dirty filter. It's a core safety device — the furnace will lock out or fail to fire if this switch is open or faulty.

Trip temperature: 150°F (opens on rise)
Type: Primary high-limit, auto-reset, normally closed
Fits: AMEC800603BXAB and compatible Goodman/Amana furnaces
Function: Overheat / airflow-loss protection
Category: Limit / safety switch

OEM vs. Generic: The genuine 20162903 is calibrated to the exact 150°F set point and physical bracket for this cabinet. Generic limits with a different trip temperature or mounting can nuisance-trip, cut heat short, or fail to protect the heat exchanger. On a safety component, match OEM.

Install difficulty: Easy (2 of 5). Disconnect the two spade terminals, remove the mounting screws, install the new switch, and reconnect. Kill power at the breaker first; if the old limit tripped, also find and fix the 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 150F Primary Limit S...

$8.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMEC800603BXAB — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman AMEC800603BXAB — 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 AMEC800603BXAB — 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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OEM Goodman 150F Primary Limit Switch for AMEC800603BXAB — 20162903

Goodman 20162903 Primary High-Limit Switch (150°F)

Shipping Information

Return Policy

Frequently Asked Questions