Lennox 10M63 Limit Switch An open circuit during a

An open circuit during a cold state indicates a failed switch that requires immediate replacement to restore furnace operation

For versatile field applications

Common Questions: Is the 100208089 compatible with older GKT2034 models

When you're out in the field facing a dead strip heater

and 16mm width

Lennox 10M63 Limit Switch An open circuit during aThe Lennox 10M63 Limit Switch is a critical safety component designed for precise thermal regulation within residential and light commercial HVAC systems. Engineered for high reliability applications, this SPDT limit control features an automatic reset function that ensures the system returns to normal operation once temperatures stabilize within the safe functional window. This specific model is a normally closed switch that triggers an open circuit