What are the specs for this Limit Switch?

The correct replacement for Goodman model AMVC81005CNAA — 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 AMVC81005CNAA — 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 Control for AMVC81005CNAA — 20162904

Name: OEM Goodman Primary Limit Control for AMVC81005CNAA — 20162904
Brand: Goodman
SKU: GOODMAN-8534
Price: 54.95 USD
Availability: InStock

SKU: GOODMAN-8534 Brand: Goodman

$54.95 $72.95

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The genuine OEM Goodman 20162904 Primary Limit Temperature Control is the main high-limit safety switch for the Goodman/Amana AMVC81005CNAA gas furnace. Mounted on the heat-exchanger bulkhead, it continuously monitors supply-air temperature and shuts off the gas valve if the furnace overheats — typically from a dirty filter, blocked ductwork, or a failed blower. It automatically resets once temperatures return to a safe range.

Symptoms of a failed primary limit include short-cycling on heat, the blower running continuously, or no heat at all. Installing the exact OEM control restores accurate over-temperature protection and normal furnace operation.

Specifications

OEM Part Number: 20162904
Component: Primary high-limit temperature control
Fits Model: AMVC81005CNAA (Goodman/Amana)
Contacts: Normally closed, opens on over-temperature
Reset: Automatic
Equipment Type: Gas furnace safety control

OEM vs. Generic

The primary limit's trip temperature and sensor length are calibrated to this specific furnace's airflow and cabinet. A generic substitute with a different setpoint risks nuisance shutdowns or failure to protect the heat exchanger. OEM ensures factory-spec protection.

Installation Difficulty: Moderate

Requires accessing the heat-exchanger area, transferring wiring, and confirming correct sensor insertion depth. Recommended for a qualified HVAC technician. Replace a clogged filter and confirm proper airflow, since restricted airflow is the most common cause of limit trips. Disconnect power before servicing.

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 Contro...

$54.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMVC81005CNAA — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman AMVC81005CNAA — 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 AMVC81005CNAA — 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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