Laars Heating Systems E2339400 Thermistor
The Laars Heating Systems E2339400 Thermistor is a critical NTC temperature sensor engineered for precise thermal monitoring in high-efficiency hydronic boilers and volume water heaters. This OEM replacement part features a robust stainless steel construction to resist corrosion and scaling in demanding heating loops. Designed with a 1/8" NPT connection, the E2339400 thermistor provides accurate resistance-to-temperature feedback to the main control board, ensuring the system maintains setpoint temperatures while preventing overheating conditions. As a Negative Temperature Coefficient device, its resistance decreases as the temperature of the medium rises, allowing for real-time modulation of the firing rate. This sensor is commonly utilized in Laars Mighty Therm2 and NeoTherm units to monitor outgoing water temperature or heat exchanger status. For field technicians, verifying the NTC resistance curve against manufacturer specifications is essential during troubleshooting to ensure peak fuel efficiency and consistent domestic hot water or space heating performance.
Key Benefits- Corrosion Resistance: High-grade stainless steel probe ensures long-term durability in aggressive water conditions.
- Precision Control: Tight tolerance NTC thermistor technology provides the accurate data needed for advanced HVAC modulation.
- Standardized Fitting: The 1/8 inch NPT male thread allows for a direct, leak-free mechanical installation into existing sensor wells.
- System Protection: Critical for detecting high-limit events, protecting the heat exchanger from thermal stress and potential failure.
Is the E2339400 compatible with older Laars models?
While this 1/8" NPT SS thermistor is a standard component for newer series like the MT2, compatibility depends on the specific control board and sensor well size. Always verify the part number against your unit's serial-specific parts list.
How can I test if the thermistor is failing?
Technicians should perform a resistance check using a multimeter set to the 20K ohm scale. Compare the readings at specific temperatures (e.g., 77°F) to the manufacturer’s resistance chart to identify drifting or "open" circuits.
Does this sensor require a separate thermowell?
The E2339400 is often installed directly into a tapped 1/8" port. However, in high-pressure applications, it may be used in conjunction with a matching stainless steel well to allow for replacement without draining the entire system.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $34.68
-65%$34.68
$12.14Laars Heating Systems E2339400 Thermistor
The Laars Heating Systems E2339400 Thermistor is a critical NTC temperature sensor engineered for precise thermal monitoring in high-efficiency hydronic boilers and volume water heaters. This OEM replacement part features a robust stainless steel construction to resist corrosion and scaling in demanding heating loops. Designed with a 1/8" NPT connection, the E2339400 thermistor provides accurate resistance-to-temperature feedback to the main control board, ensuring the system maintains setpoint temperatures while preventing overheating conditions. As a Negative Temperature Coefficient device, its resistance decreases as the temperature of the medium rises, allowing for real-time modulation of the firing rate. This sensor is commonly utilized in Laars Mighty Therm2 and NeoTherm units to monitor outgoing water temperature or heat exchanger status. For field technicians, verifying the NTC resistance curve against manufacturer specifications is essential during troubleshooting to ensure peak fuel efficiency and consistent domestic hot water or space heating performance.
Key Benefits- Corrosion Resistance: High-grade stainless steel probe ensures long-term durability in aggressive water conditions.
- Precision Control: Tight tolerance NTC thermistor technology provides the accurate data needed for advanced HVAC modulation.
- Standardized Fitting: The 1/8 inch NPT male thread allows for a direct, leak-free mechanical installation into existing sensor wells.
- System Protection: Critical for detecting high-limit events, protecting the heat exchanger from thermal stress and potential failure.
Is the E2339400 compatible with older Laars models?
While this 1/8" NPT SS thermistor is a standard component for newer series like the MT2, compatibility depends on the specific control board and sensor well size. Always verify the part number against your unit's serial-specific parts list.
How can I test if the thermistor is failing?
Technicians should perform a resistance check using a multimeter set to the 20K ohm scale. Compare the readings at specific temperatures (e.g., 77°F) to the manufacturer’s resistance chart to identify drifting or "open" circuits.
Does this sensor require a separate thermowell?
The E2339400 is often installed directly into a tapped 1/8" port. However, in high-pressure applications, it may be used in conjunction with a matching stainless steel well to allow for replacement without draining the entire system.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Laars Heating Systems E2339400 Thermistor is a critical NTC temperature sensor engineered for precise thermal monitoring in high-efficiency hydronic boilers and volume water heaters. This OEM replacement part features a robust stainless steel construction to resist corrosion and scaling in demanding heating loops. Designed with a 1/8" NPT connection, the E2339400 thermistor provides accurate resistance-to-temperature feedback to the main control board, ensuring the system maintains setpoint temperatures while preventing overheating conditions. As a Negative Temperature Coefficient device, its resistance decreases as the temperature of the medium rises, allowing for real-time modulation of the firing rate. This sensor is commonly utilized in Laars Mighty Therm2 and NeoTherm units to monitor outgoing water temperature or heat exchanger status. For field technicians, verifying the NTC resistance curve against manufacturer specifications is essential during troubleshooting to ensure peak fuel efficiency and consistent domestic hot water or space heating performance.
Key Benefits- Corrosion Resistance: High-grade stainless steel probe ensures long-term durability in aggressive water conditions.
- Precision Control: Tight tolerance NTC thermistor technology provides the accurate data needed for advanced HVAC modulation.
- Standardized Fitting: The 1/8 inch NPT male thread allows for a direct, leak-free mechanical installation into existing sensor wells.
- System Protection: Critical for detecting high-limit events, protecting the heat exchanger from thermal stress and potential failure.
Is the E2339400 compatible with older Laars models?
While this 1/8" NPT SS thermistor is a standard component for newer series like the MT2, compatibility depends on the specific control board and sensor well size. Always verify the part number against your unit's serial-specific parts list.
How can I test if the thermistor is failing?
Technicians should perform a resistance check using a multimeter set to the 20K ohm scale. Compare the readings at specific temperatures (e.g., 77°F) to the manufacturer’s resistance chart to identify drifting or "open" circuits.
Does this sensor require a separate thermowell?
The E2339400 is often installed directly into a tapped 1/8" port. However, in high-pressure applications, it may be used in conjunction with a matching stainless steel well to allow for replacement without draining the entire system.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
