What are the specs for this Limit Switch?

The correct replacement for Goodman model ACVC961005CNAA — 20162906 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 ACVC961005CNAA — 20162906.

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 Switch for ACVC961005CNAA — 20162906

Name: OEM Goodman Primary Limit Switch for ACVC961005CNAA — 20162906
Brand: Goodman
SKU: GOODMAN-2905
Price: 14.95 USD
Availability: InStock

SKU: GOODMAN-2905 Brand: Goodman

$14.95 $20.18

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The Goodman 20162906 M4 Primary Limit Switch is a genuine OEM high-limit safety control engineered for the Goodman/Amana ACVC961005CNAA modulating gas furnace and compatible 96% AFUE models. This normally-closed thermal switch monitors heat-exchanger and plenum temperature, opening the circuit to shut off the gas valve and burners if the furnace overheats — protecting the equipment, ductwork, and your home from unsafe operating conditions.

A failed or out-of-spec primary limit switch is a common cause of short-cycling, no-heat calls, and lockout fault codes. Replacing it with the correct factory part restores reliable, code-compliant safety shutdown performance.

Specifications

Part type: Primary high-limit safety switch (M4 series)
OEM part number: 20162906
Configuration: Normally closed, auto-reset thermal switch
Application: Gas furnace heat-exchanger / plenum limit
Compatibility: Goodman / Amana ACVC961005CNAA and related 96% AFUE furnaces
Brand: Genuine Goodman OEM

OEM vs. Generic

This is a genuine Goodman OEM limit switch calibrated to the factory trip temperature for your exact furnace. Universal or generic limit switches are often set to a different cutout point, which can cause nuisance trips or — worse — fail to protect the heat exchanger. Choosing OEM guarantees the correct temperature rating, terminal layout, and mounting fit.

Installation

Difficulty: Easy (1/5). A two-wire swap that most homeowners and all HVAC technicians can complete in minutes. Always disconnect power at the furnace before servicing. If the original limit tripped, diagnose the underlying cause (dirty filter, blocked airflow, failed blower) before returning the unit to service.

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 Switch...

$14.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman ACVC961005CNAA — 20162906?

Yes. This is the factory-specified OEM limit switch for the Goodman ACVC961005CNAA — 20162906. 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 ACVC961005CNAA — 20162906?

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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