Trane THT2542 Limit Switch
The Trane THT2542 Limit Switch is a critical safety component designed for precise thermal monitoring in Trane HVAC systems, including residential furnaces and air handlers. This OEM replacement part (also identified by part number THT02542) is engineered as an L130-20F limit switch, meaning it is set to open the circuit at 130°F and close with a 20°F differential (re-closing at 110°F). This automatic reset function ensures the unit interrupts operation during high-heat excursions, protecting the heat exchanger and internal electrical components from thermal damage. Built with a SPDT contact configuration and rated for 15A at 120/240 VAC, it provides the robust connectivity required by professional technicians. When diagnosing furnace overheating or blower motor timing issues, utilizing a genuine Trane THT2542 ensures factory-spec timing and thermal safety without the reliability risks associated with generic alternatives.
Key Benefits
- Factory-Calibrated Precision: Fixed 130-degree opening point ensures the system stays within safe engineering parameters.
- Automatic Reset: Includes a 20-degree differential, allowing the HVAC high limit switch to re-engage once the system cools to 110°F.
- Universal Compatibility: Standard SPDT contacts and 15A electrical rating match original furnace safety switch requirements.
- OEM Durability: Genuine Trane replacement part eliminates mounting footprint issues and ensures long-term cycles in high-heat environments.
Common Questions
- What does the L130-20F rating mean for my furnace? It means the switch will trip and shut down the burners if the internal temperature hits 130°F, and it won't allow a restart until the temperature drops back down to 110°F.
- Can I use a THT2542 to replace a manual reset switch? No, this is an automatic reset model. Always match the reset type and limit switch temperature settings to your specific unit's data plate.
- Why does my furnace keep tripping this limit switch? Frequent tripping often indicates restricted airflow, such as a dirty HVAC air filter, a failing blower motor, or blocked return ducts.
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.
Trane THT2542 Limit Switch
The Trane THT2542 Limit Switch is a critical safety component designed for precise thermal monitoring in Trane HVAC systems, including residential furnaces and air handlers. This OEM replacement part (also identified by part number THT02542) is engineered as an L130-20F limit switch, meaning it is set to open the circuit at 130°F and close with a 20°F differential (re-closing at 110°F). This automatic reset function ensures the unit interrupts operation during high-heat excursions, protecting the heat exchanger and internal electrical components from thermal damage. Built with a SPDT contact configuration and rated for 15A at 120/240 VAC, it provides the robust connectivity required by professional technicians. When diagnosing furnace overheating or blower motor timing issues, utilizing a genuine Trane THT2542 ensures factory-spec timing and thermal safety without the reliability risks associated with generic alternatives.
Key Benefits
- Factory-Calibrated Precision: Fixed 130-degree opening point ensures the system stays within safe engineering parameters.
- Automatic Reset: Includes a 20-degree differential, allowing the HVAC high limit switch to re-engage once the system cools to 110°F.
- Universal Compatibility: Standard SPDT contacts and 15A electrical rating match original furnace safety switch requirements.
- OEM Durability: Genuine Trane replacement part eliminates mounting footprint issues and ensures long-term cycles in high-heat environments.
Common Questions
- What does the L130-20F rating mean for my furnace? It means the switch will trip and shut down the burners if the internal temperature hits 130°F, and it won't allow a restart until the temperature drops back down to 110°F.
- Can I use a THT2542 to replace a manual reset switch? No, this is an automatic reset model. Always match the reset type and limit switch temperature settings to your specific unit's data plate.
- Why does my furnace keep tripping this limit switch? Frequent tripping often indicates restricted airflow, such as a dirty HVAC air filter, a failing blower motor, or blocked return ducts.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Trane THT2542 Limit Switch is a critical safety component designed for precise thermal monitoring in Trane HVAC systems, including residential furnaces and air handlers. This OEM replacement part (also identified by part number THT02542) is engineered as an L130-20F limit switch, meaning it is set to open the circuit at 130°F and close with a 20°F differential (re-closing at 110°F). This automatic reset function ensures the unit interrupts operation during high-heat excursions, protecting the heat exchanger and internal electrical components from thermal damage. Built with a SPDT contact configuration and rated for 15A at 120/240 VAC, it provides the robust connectivity required by professional technicians. When diagnosing furnace overheating or blower motor timing issues, utilizing a genuine Trane THT2542 ensures factory-spec timing and thermal safety without the reliability risks associated with generic alternatives.
Key Benefits
- Factory-Calibrated Precision: Fixed 130-degree opening point ensures the system stays within safe engineering parameters.
- Automatic Reset: Includes a 20-degree differential, allowing the HVAC high limit switch to re-engage once the system cools to 110°F.
- Universal Compatibility: Standard SPDT contacts and 15A electrical rating match original furnace safety switch requirements.
- OEM Durability: Genuine Trane replacement part eliminates mounting footprint issues and ensures long-term cycles in high-heat environments.
Common Questions
- What does the L130-20F rating mean for my furnace? It means the switch will trip and shut down the burners if the internal temperature hits 130°F, and it won't allow a restart until the temperature drops back down to 110°F.
- Can I use a THT2542 to replace a manual reset switch? No, this is an automatic reset model. Always match the reset type and limit switch temperature settings to your specific unit's data plate.
- Why does my furnace keep tripping this limit switch? Frequent tripping often indicates restricted airflow, such as a dirty HVAC air filter, a failing blower motor, or blocked return ducts.
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.
