Whether you are performing routine maintenance on a UDAP150 or troubleshooting a fan start issue on a UDZ400

this genuine OEM component is critical for maintaining thermal efficiency in Trane units

and lighting arrays

restoring furnace operation once safe temperatures are reached

The MxF signifies a Male NPT inlet and a Female NPT outlet

Nordyne 626456R Limit Switch Whether you are performing routineThe 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