What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH80803BXBA — 20162904 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 AMH80803BXBA — 20162904.

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 Temp Control for AMH80803BXBA — 20162904

Name: OEM Goodman Primary Limit Temp Control for AMH80803BXBA — 20162904
Brand: Goodman
SKU: GOODMAN-5473
Price: 59.95 USD
Availability: InStock

SKU: GOODMAN-5473 Brand: Goodman

$59.95 $79.95

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The Goodman 20162904 Primary Limit Temperature Control is a genuine OEM high-limit safety switch for the AMH80803BXBA gas furnace and compatible Goodman/Amana models. Mounted on the heat-exchanger bulkhead, it continuously monitors supply-plenum temperature and de-energizes the gas valve if the furnace overheats — typically from restricted airflow, a dirty filter, or a failed blower. It auto-resets once temperature returns to a safe range, protecting the heat exchanger from cracking.

Specifications

Part Type: Primary (auto-reset) high-limit control
Contact Action: Normally closed, opens on high temperature
Mounting: Heat-exchanger / plenum bracket
OEM Part Number: 20162904
Brand: Goodman (fits Amana AMH-series)
Fits Model: AMH80803BXBA

OEM vs. Generic

The OEM 20162904 ships with the correct trip temperature and probe length for the AMH cabinet. Generic substitutes with a shorter probe or wrong setpoint can short-cycle the furnace on limit or fail to protect it. For a primary safety, OEM is the reliable choice.

Installation Difficulty

Moderate (2/5) — Two screws and spade terminals, but the probe must seat in the correct airstream position. Shut off power and gas, transfer wiring one lead at a time, and address any airflow restriction that caused the trip.

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 Temp C...

$59.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH80803BXBA — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH80803BXBA — 20162904. 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 AMH80803BXBA — 20162904?

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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