What are the specs for this Limit Switch?

The correct replacement for Goodman model AMSS920403ANAA — 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 AMSS920403ANAA — 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.

IMAGE COMING SOON

Goodman

OEM Goodman 150°F Primary Limit Switch for AMSS920403ANAA — 20162903

Name: OEM Goodman 150°F Primary Limit Switch for AMSS920403ANAA — 20162903
Brand: Goodman
SKU: GOODMAN-20162903
Price: 22.95 USD
Availability: InStock

SKU: GOODMAN-20162903 Brand: Goodman

$22.95 $29.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

The Goodman 20162903 Primary Limit Switch is a genuine OEM 150°F high-limit safety control for the AMSS920403ANAA 92% single-stage gas furnace and compatible Goodman/Amana models. Mounted on the heat-exchanger bulkhead, this auto-reset switch monitors supply-air temperature and cuts the gas valve if the plenum overheats — protecting the heat exchanger from cracking when airflow is restricted by a dirty filter, blocked ducts, or a failing blower.

Specifications

Part Type: Primary High-Limit Switch
OEM Part Number: 20162903
Trip Temperature: 150°F (auto-reset on cool-down)
Fits: Goodman & Amana AMSS920403ANAA and related 92% furnaces
Action: Normally closed, opens on overtemperature
Terminals: 1/4 in. quick-connect spade

OEM vs. Generic

The 150°F setpoint is matched to this furnace's heat-exchanger design. A generic limit with a different trip point will either short-cycle the burners or allow the plenum to run dangerously hot. For heat-exchanger protection, the calibrated OEM 20162903 is the correct choice.

Installation Difficulty

Moderate (2/5). Cut power and gas, disconnect the two spade terminals, remove the mounting screws, and install the new switch in the same position against the bulkhead. Confirm normal cycling on restart. If furnace wiring is unfamiliar, use a licensed HVAC technician.

Fast shipping and a 30-day return policy. Safeguard your heat exchanger with the genuine Goodman 20162903 primary limit switch.

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 ...

$22.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMSS920403ANAA — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman AMSS920403ANAA — 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 AMSS920403ANAA — 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.

Menu