What are the specs for this Limit Switch?

The correct replacement for Lennox model OEM Lennox Thermal Cut-Off / Limit Switch — 98G47 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 Lennox equipment which lists the model number OEM Lennox Thermal Cut-Off / Limit Switch — 98G47.

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.

IMAGE COMING SOON

Lennox

OEM Lennox Thermal Cut-Off / Limit Switch — 98G47

Name: OEM Lennox Thermal Cut-Off / Limit Switch — 98G47
Brand: Lennox
SKU: LNX-98G47
Price: 39.95 USD
Availability: InStock

SKU: LNX-98G47 Brand: Lennox

$39.95 $54.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

The genuine OEM Lennox 98G47 thermal cut-off is a safety limit device that protects your furnace from dangerous overheating. It continuously senses temperature in the heat-exchanger or burner area and instantly interrupts the circuit if heat climbs past a safe threshold — shutting down the burners to prevent heat-exchanger damage, component failure, and fire risk.

Common failure symptoms: the furnace short-cycles or won't fire on a heat call, burners ignite then drop out repeatedly, the system trips to a lockout or displays a limit-fault code, or the unit stays cold despite a working igniter and gas supply. A cut-off can also fail from age, nuisance tripping caused by restricted airflow, or a dirty filter.

Why OEM matters: this is a safety-critical component with a precise trip temperature and reset rating specified for your Lennox model. A substitute with the wrong setpoint may trip early, fail to trip when needed, or not seat correctly. The OEM Lennox 98G47 guarantees the exact temperature calibration and mounting fit your equipment requires for safe, reliable protection.

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 Lennox Thermal Cut-Off / Lim...

$39.95

Frequently Asked Questions

Does this Limit Switch fit my Lennox OEM Lennox Thermal Cut-Off / Limit Switch — 98G47?

Yes. This is the factory-specified OEM limit switch for the Lennox OEM Lennox Thermal Cut-Off / Limit Switch — 98G47. 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 Lennox OEM Lennox Thermal Cut-Off / Limit Switch — 98G47?

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 Lennox 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 Lennox 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

OEM Lennox Thermal Cut-Off / Limit Switch — 98G47

Shipping Information

Return Policy

Frequently Asked Questions