What are the specs for this Limit Switch?

The correct replacement for Goodman model AMEC961004CNAB — 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 AMEC961004CNAB — 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.

IMAGE COMING SOON

Goodman

OEM Goodman M4 Primary Limit Switch for AMEC961004CNAB — 20162906

Name: OEM Goodman M4 Primary Limit Switch for AMEC961004CNAB — 20162906
Brand: Goodman
SKU: GOODMAN-4282
Price: 23.95 USD
Availability: InStock

SKU: GOODMAN-4282 Brand: Goodman

$23.95 $31.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Goodman 20162906 M4 Primary Limit Switch

The 20162906 is a genuine Goodman/Amana M4 primary limit switch for the AMEC961004CNAB gas furnace. Mounted on the heat-exchanger bulkhead, it is the furnace's main over-temperature safety. If supply-air temperature climbs above the design limit — typically from a dirty filter, closed registers, or a failing blower — the switch opens and interrupts the gas valve to prevent heat-exchanger damage and unsafe operation. As an auto-reset control it re-closes once temperatures return to normal, allowing the furnace to resume without manual intervention.

Specifications

Part number: 20162906
Type: M4 primary auto-reset high-limit switch
Reset: Automatic (temperature-based)
Function: Opens gas valve circuit on plenum over-temperature
Fits: AMEC961004CNAB and compatible Goodman/Amana furnaces

OEM vs. Generic

The OEM 20162906 ships with the correct M4 mounting profile and the factory temperature setpoint matched to this furnace's heat exchanger. Generic substitutes risk incorrect trip points and mounting misfit. For reliable protection choose the OEM part.

Installation Difficulty

Moderate (3/5). Power off, remove the blower/control panel, note terminal orientation, unfasten the two mounting screws, and transfer the wiring to the new switch. Verify continuity resets when cool before returning 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 M4 Primary Limit Swi...

$23.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMEC961004CNAB — 20162906?

Yes. This is the factory-specified OEM limit switch for the Goodman AMEC961004CNAB — 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 AMEC961004CNAB — 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.

Menu