The Nordyne 626619 Limit Switch is a critical safety component designed for precise thermal regulation in HVAC furnace systems

restoring furnace operation once safe temperatures are reached

ensuring the electromagnetic coil in the gas valve remains energized during normal operation

Verify your machine's model number on the data plate to ensure compatibility with standard 1/2-gallon or 1-gallon hoppers

and lighting arrays

Nordyne 626456R Limit Switch The Nordyne 626619 Limit SwitchThe Nordyne 626456R Limit Switch is a critical high limit safety component designed for precise thermal regulation in residential furnaces and forced air heating systems. This OEM Nordyne replacement part operates with an L135 30F fixed setting, meaning it is engineered to open the electrical circuit at 135? F and automatically reset when the temperature drops to 105? F. For veteran techs, this 105 135F auto limit switch is the standard solution for