What are the specs for this Limit Switch?

The correct replacement for Goodman model VMS81005CNAA — 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 VMS81005CNAA — 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 Temperature Control for VMS81005CNAA — 20162904

Name: OEM Goodman Primary Limit Temperature Control for VMS81005CNAA — 20162904
Brand: Goodman
SKU: GOODMAN-13748
Price: 44.95 USD
Availability: InStock

SKU: GOODMAN-13748 Brand: Goodman

$44.95 $59.95

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Goodman 20162904 Primary Limit Temperature Control

The Goodman 20162904 is a genuine primary high-limit temperature control for VMS81005CNAA gas furnaces and compatible Goodman/Amana models. Mounted on the heat-exchanger bulkhead, this snap-disc limit monitors supply-air temperature and cuts the gas valve if airflow drops or the furnace overheats — protecting the heat exchanger and blower housing. It is the furnace's main overtemperature safeguard, so a failed or drifted limit is a common cause of short-cycling and no-heat lockouts.

Specifications

Type: Primary high-limit (auto-reset snap disc)
Contacts: Normally closed, opens on overtemperature
Sensing: Bimetal snap disc, factory-calibrated setpoint
Mount: Flange / bracket mount with spade terminals
Fits: Goodman VMS81005CNAA and related 80%/90% furnaces
OEM part number: 20162904

OEM vs. Generic

The OEM 20162904 arrives calibrated to the exact open/close temperatures Goodman specifies for this cabinet and heat exchanger. Generic limits with an approximate setpoint nuisance-trip in cold weather or, worse, allow the exchanger to overheat. Because this is the primary safety control, the genuine part is strongly recommended.

Install Difficulty

Easy (2/5). Disconnect power, photograph the wiring, remove the two mounting screws, and install the replacement in the identical position and orientation. About 15–20 minutes. If the limit was tripping, correct any airflow restriction (filter, blower, ductwork) first. Professional service recommended for safety-limit diagnosis.

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 Temper...

$44.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman VMS81005CNAA — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman VMS81005CNAA — 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 VMS81005CNAA — 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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