What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH81205DXBB — 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 AMH81205DXBB — 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 Primary Limit Switch 150F for AMH81205DXBB — 20162903

Name: OEM Goodman Primary Limit Switch 150F for AMH81205DXBB — 20162903
Brand: Goodman
SKU: GOODMAN-6114
Price: 18.95 USD
Availability: InStock

SKU: GOODMAN-6114 Brand: Goodman

$18.95 $24.95

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Goodman 20162903 Primary Limit Switch (150°F)

The Goodman 20162903 is a genuine OEM primary high-limit switch with a 150°F trip point, designed for the AMH81205DXBB gas furnace and compatible Goodman/Amana models. Mounted on the heat-exchanger bulkhead, this temperature-sensing safety switch monitors supply-air temperature and opens the control circuit if the furnace overheats — typically from restricted airflow, a dirty filter, or blower failure. Correct operation of the primary limit is essential to protect the heat exchanger and prevent unsafe temperatures, so replace it only with the exact OEM-rated part.

Specifications

OEM Part Number: 20162903
Type: Primary high-limit switch
Trip temperature: 150°F (auto reset)
Contacts: Normally closed (opens on overtemp)
Fits: Goodman & Amana AMH81205DXBB gas furnaces
Brand: Goodman (OEM)

OEM vs. Generic

The genuine Goodman 20162903 is calibrated to the precise 150°F trip point and mounting-bracket geometry this furnace requires. A generic switch with a different trip temperature or footprint can cause nuisance shutdowns or fail to protect the heat exchanger. As a primary safety control, OEM is strongly recommended for correct, reliable protection.

Installation Difficulty

Easy to Moderate. Disconnect the two spade terminals, remove the mounting screws, and install the replacement in the same orientation — usually 10–15 minutes. If the new limit trips repeatedly, inspect airflow, filter, and blower operation before assuming a part fault. Shut off gas and power before servicing.

Not sure which limit your furnace uses? Email info@nationalhvacparts.com for help.

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 Primary Limit Switch...

$18.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH81205DXBB — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH81205DXBB — 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 AMH81205DXBB — 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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