Nordyne 626508R Limit Switch this part is engineered to

this part is engineered to monitor heat exchanger temperatures

How do I identify a failing limit switch versus an airflow issue

Combustion Precision: Maintains the critical air-tight seal required for proper pressure switch operation and stable flame signals

using it on low-voltage circuits will result in no illumination

Common Questions What is the correct lead length and connector type for the 767A-361

Nordyne 626508R Limit Switch this part is engineered toThe Nordyne 626508R is a critical high limit safety component designed for residential gas furnaces and air handlers. This L250 40F limit switch acts as a primary safety sensor, monitoring the heat exchanger and plenum temperatures to protect the system from thermal damage. Factory calibrated to normally closed (NC) specifications, the 626508R Auto Limit Switch will open the circuit to interrupt the burner if temperatures reach the 250F cut out