Furnace Thermostat Auto Reset, 1/4" Terminal 140°F Cut-Out / 100°F Cut-In SLS140

Furnace Thermostat | SLS140 | Auto Reset | 140°F Cut-Out / 100°F Cut-In

Maintain safe and efficient heating system operation with this brand-new SLS140 auto reset furnace thermostat. Designed to cut out at 140°F and reset at 100°F, this compact 1/2" bimetal disc switch features 1/4" terminals and belongs to the trusted SLS Seriesoffering proven reliability, versatile fitment, and cost-effective performance for residential and light commercial HVAC systems.

Features & Benefits:

• Auto reset functionality for continuous thermal cycling


• 140°F cut-out / 100°F cut-in temperature range


• 1/4" quick-connect terminals for easy installation


• Compact 1/2" bimetal disc configuration


• Brand New Unused and ready to install

Replaces Part Numbers:

Direct replacement for thermostats matching SLS140 specifications. Please verify terminal size and temperature ratings before ordering.

Fits Models:

Compatible with select furnace and HVAC systems requiring auto reset thermostats with 140°F cut-out and 100°F cut-in settings. Refer to your units service manual or model tag to confirm compatibility. Contact us if you need help verifying fitment.

Installation Tips:

• Disconnect power before servicing your furnace or HVAC unit


• Locate the thermostat near the heat source or plenum


• Remove mounting hardware and disconnect wire terminals


• Install the SLS140 in the same orientation and location


• Reconnect wires securely, restore power, and test system operation

Auto reset performance. Compact reliability. Upgrade your furnace with the SLS140 thermostat today.