What are the specs for this Limit Switch?

The correct replacement for Goodman model GKS91155DXAG — 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 GKS91155DXAG — 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 M4 Primary High-Limit Switch for GKS91155DXAG — 20162906

Name: OEM Goodman M4 Primary High-Limit Switch for GKS91155DXAG — 20162906
Brand: Goodman
SKU: GOODMAN-20162906
Price: 22.95 USD
Availability: InStock

SKU: GOODMAN-20162906 Brand: Goodman

$22.95 $29.95

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Goodman 20162906 M4 Primary Limit Switch

The Goodman 20162906 is a genuine OEM M4 primary high-limit switch for the GKS91155DXAG gas furnace and compatible Goodman/Amana models. Mounted on the heat exchanger bulkhead, this primary limit continuously monitors supply-air temperature and opens the control circuit if the furnace overheats — most often due to restricted airflow from a clogged filter, closed registers, or a weak blower. By cutting the burners while the blower continues to run, it protects the heat exchanger from thermal damage and prevents unsafe operating temperatures.

Specifications

Type: M4 primary high-limit switch
Function: Normally-closed thermal safety cutout (auto-reset)
Terminals: 1/4 in. quick-connect spade
Mounting: Heat-exchanger bulkhead, OEM bracket
Fits: Goodman/Amana GKS91155DXAG and compatible GKS9 series
Brand: Genuine Goodman OEM

OEM vs. Generic

The OEM 20162906 is factory-calibrated to the precise limit temperature and insertion depth this furnace demands. Universal limit switches with adjustable or approximate set points risk nuisance lockouts or inadequate protection. For a primary safety control, the genuine Goodman part is the reliable choice.

Install Difficulty

Easy (2/5). Typically 10–15 minutes: disconnect power and gas, photograph the wiring, remove the two spade terminals, unscrew the limit from the bulkhead, and install the replacement at the same depth. Always correct any airflow restriction that caused the furnace to overheat before returning it to service.

Compatibility note: Verify your furnace model and original part number before purchase. Fits Goodman GKS91155DXAG.

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 High-Limi...

$22.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GKS91155DXAG — 20162906?

Yes. This is the factory-specified OEM limit switch for the Goodman GKS91155DXAG — 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 GKS91155DXAG — 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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