Find the right part faster
Multiple models matched. Select your model to confirm fit.

Kit 24 thermocouple

24" Thermocouple

Thermocouple, 24 inches

Thermocouple, 36 inches

Flame rod, right, with wire and gasket

Thermistor assembly,ntc

Thermocouple, 30 inches

Flame sensor with gasket, used on all EF and EF-2 models

24" Thermocouple

Thermistor assembly

18" thermocouple

Thermocouple, 18 inches

Sensor-lower t-stat (int. control) 11 1/4 lg.

Upper temp sensor

24" Thermocouple
Experience precision and peace of mind with Repair Clinic's genuine Lennox Water Heater Sensor and Thermistor parts. A well-functioning sensor is vital for an efficient water heater, ensuring accurate temperature readings and optimal water flow. If you notice issues like fluctuating water temperatures, it might be time to replace faulty sensors or thermistors. Repair Clinic makes finding the right replacement thermistor parts easy, with options tailored to maintain your Lennox water heater’s warranty and performance. Explore our vast inventory to find exactly what you need. Trust in our genuine OEM replacement parts for superior repair solutions. Discover more by exploring order replacement parts online, ensuring a precise fit for your water heater model. Keep your water heater efficient with Repair Clinic's expertise and quality parts.
Explore frequently asked questions about water heater sensors and thermistors to ensure efficient repairs and maintenance.
Sensors and thermistors monitor the temperature and regulate water heating functions. They ensure safety and energy efficiency by maintaining the set water temperature.
A faulty thermistor can lead to incorrect temperature readings, causing inconsistent water temperatures. Replace it to maintain water heater efficiency and safety.
To ensure compatibility, use our water heater parts lookup tool at Repair Clinic to find genuine OEM parts. Enter your heater's model number to find matching parts.
Repair Clinic is your reliable source for Lennox water heater sensor and thermistor parts. We offer same-day shipping, a 365-day return policy, and a price match guarantee on identical OEM parts. Our customer service is available to assist with all of your needs.


Your water heater's efficient and safe operation often hinges on its sensors and thermistors. Essential for proper temperature regulation, these components can resolve numerous heating issues when replaced as needed. Finding compatible water heater sensor and thermistor parts online is convenient and ensures genuine replacements with same-day shipping guarantees. Enjoy the efficiency of our model number and part number lookup, designed to help you locate the exact parts for your specific unit while benefiting from No-Hassle 365-Day Returns. Our Price Match Guarantee ensures you'receive the best deal on premium replacements.
Explore Lennox Water Heater Sensor Thermistor PartsFor comprehensive assistance and repair insights, visit our Water Heater Repair Help page, offering expert troubleshooting guides and videos.
Finding the correct Water Heater Sensor or Thermistor replacement part is crucial for repairs and efficiency. First, locate your model number often found near the control panel or access panel of your unit. Using our online water heater parts lookup, enter the model number for a list of eligible replacement water heater parts. We provide genuine Water Heater Sensor & Thermistor parts designed to ensure reliable water heater repair and performance. Easily order replacement water heater parts online for a seamless repair process.
Explore more with Bryant Water Heater Nut Parts for additional support in maintaining your unit.

Finding the right Water Heater Sensor & Thermistor parts is easy with our expert support available seven days a week. If your water heater isn't heating effectively or your water temperature fluctuates, it could be due to a faulty sensor or thermistor. Common issues include incorrect thermostat settings or a damaged dip tube, which can be diagnosed and repaired with help from our support team. To quickly find the replacement parts you need, use our model/part number lookup, and enjoy a seamless ordering process backed by a price match guarantee and a no-hassle 365-day return policy. Our genuine OEM parts ensure reliability and compatibility with your unit. For quick support, use our live chat, where our dedicated representatives are ready to assist you in selecting the right parts. Access our repair guides and videos in the Water Heater Repair Help section to gain insights into fixing your unit confidently. Trust Repair Clinic for your Water Heater parts replacement and repair needs, as we are committed to helping DIYers and professionals alike.

Find out five common reasons your electric water heater is not heating and how to address each issue.

Explore common water heater problems homeowners face and practical steps to fix issues like leaks, temperature issues, pilot light trouble, or pressure valve faults.

Learn why your water heater is leaking and how to pinpoint and address common causes like a faulty T & P valve, a loose or damaged drain valve, or a rusted tank.