Heil Quaker ICP 1185687 Limit Switch Assembly 319825-402 also known as the A4F-D

also known as the A4F-D filter drier cartridge

As a direct NS-ATA7003-0 replacement

the control automatically resets to restore operation

and Nortek furnace limit control applications

Heil Quaker ICP 1185687 Limit Switch Assembly 319825-402 also known as the A4F-DWhen you're dealing with a furnace that is short cycling or hitting a high limit trip, the Heil Quaker ICP 1185687 Limit Switch Assembly is the direct OEM solution you need to restore safe operation. This L210 20F limit switch is engineered for precision, featuring a cut out temperature of 210? F and a cut in temperature of 190? F. As a critical safety component, it monitors heat exchanger temperatures to prevent overheating, ensuring the furnace high