What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH80403AXBD — 20162901 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 AMH80403AXBD — 20162901.

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 High-Limit Switch for AMH80403AXBD — 20162901

Name: OEM Goodman Primary High-Limit Switch for AMH80403AXBD — 20162901
Brand: Goodman
SKU: GOODMAN-4988
Price: 39.95 USD
Availability: InStock

SKU: GOODMAN-4988 Brand: Goodman

$39.95 $52.95

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The Goodman 20162901 is a genuine OEM primary high-limit switch for the AMH80403AXBD gas furnace and compatible Goodman/Amana models. Mounted on the heat-exchanger bulkhead, this auto-reset control monitors supply-air temperature and interrupts the burner circuit if the furnace overheats — typically from restricted airflow, a dirty filter, a failed blower, or closed registers. It then resets automatically once temperatures fall back into range, protecting the heat exchanger from thermal damage.

Part number: 20162901
Type: Primary high-limit switch (auto reset)
Function: Opens burner circuit on high plenum temperature
Terminals: 1/4" spade quick-connect
Mounting: Bracket / snap-disc on heat-exchanger panel
Fits: AMH80403AXBD and related Goodman/Amana furnaces

OEM vs. Generic

The OEM limit is factory-calibrated to the correct cut-out temperature and mounting depth for this cabinet. A generic snap-disc with a different set point or probe length can trip early (no heat) or trip late (overheating), so we recommend the genuine part for this safety control.

Installation Difficulty

Easy (2/5). Shut off power, disconnect the spade terminals, remove the two mounting screws, and install the new switch in the same position and orientation. About 15 minutes. If the limit trips repeatedly, address airflow first — replace the filter and verify blower operation before assuming a bad 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 Primary High-Limit S...

$39.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH80403AXBD — 20162901?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH80403AXBD — 20162901. 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 AMH80403AXBD — 20162901?

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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