What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH80805CXBB Furnace — 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 AMH80805CXBB Furnace — 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 AMH80805CXBB Furnace — 20162903

Name: OEM Goodman 150°F Primary Limit Switch for AMH80805CXBB Furnace — 20162903
Brand: Goodman
SKU: GOODMAN-5663
Price: 27.95 USD
Availability: InStock

SKU: GOODMAN-5663 Brand: Goodman

$27.95 $36.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Goodman 20162903 Primary Limit Switch (150°F)

The 20162903 is a genuine OEM primary high-limit switch rated at a 150°F trip point for the Goodman/Amana AMH80805CXBB gas furnace. Mounted on the heat-exchanger/plenum panel, it continuously senses supply-air temperature and shuts off the gas valve if the furnace overheats — typically from a dirty filter, blower failure, or restricted ductwork. A failed limit switch causes short-cycling, no-heat calls, or unsafe over-temperature operation.

Specifications

Part type: Primary high-limit (temperature) switch
Trip temperature: 150°F
Reset: Automatic (recloses on cooldown)
Contacts: Normally closed, opens on overtemperature
OEM part number: 20162903
Compatible model: AMH80805CXBB (Goodman & Amana equivalent)

OEM vs. Generic

The OEM 20162903 ships with Goodman's exact 150°F calibration and mounting footprint, so it drops in and protects at the designed setpoint. Generic limits with a different trip temperature or bracket can cause chronic nuisance shutdowns or, worse, fail to protect the heat exchanger. On a primary safety control, matching the factory rating is essential.

Installation Difficulty

Easy (2/5). Power off the furnace, disconnect the two wire terminals, remove the mounting screws, and install the new switch in the same orientation. Before restoring heat, replace the air filter and confirm proper blower airflow so the new limit isn't tripped by the underlying cause.

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 ...

$27.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH80805CXBB Furnace — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH80805CXBB Furnace — 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 AMH80805CXBB Furnace — 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