What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH80805CNBD — 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 AMH80805CNBD — 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 AMH80805CNBD — 20162903

Name: OEM Goodman 150°F Primary Limit Switch for AMH80805CNBD — 20162903
Brand: Goodman
SKU: GOODMAN-5638
Price: 17.95 USD
Availability: InStock

SKU: GOODMAN-5638 Brand: Goodman

$17.95 $23.95

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Goodman 20162903 Primary Limit Switch (150°F)

The Goodman 20162903 is a genuine OEM primary high-limit switch for the Goodman/Amana AMH80805CNBD gas furnace. Mounted on the heat-exchanger plenum, this 150°F auto-reset control opens the gas circuit if supply-air temperature climbs too high — the classic protection against a stuck blower, dirty filter, or restricted ductwork. A failed limit switch causes no-heat lockouts or dangerous overheating, so a genuine spec-matched replacement is essential.

Part Number: 20162903
Type: Primary high-limit switch
Trip Temperature: 150°F (auto-reset)
Terminals: Dual spade connectors
Mounting: Plenum / heat-exchanger bracket (direct fit)
Fits: Goodman/Amana AMH80805CNBD and compatible 80% AFUE furnaces

OEM vs. Generic

OEM limit switches are calibrated to Goodman's exact 150°F trip point and insertion depth. Generic substitutes with different set points can nuisance-trip or fail to protect the furnace at all. For accurate high-limit protection, use the OEM part.

Install Difficulty

Easy — two spade terminals and mounting screws. Cut power first, and check airflow (filter, blower) to address the root cause of any high-limit trips.

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 ...

$17.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH80805CNBD — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH80805CNBD — 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 AMH80805CNBD — 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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