Carrier 338085-408 Limit Switch 323613-751 as the unit is designed

as the unit is designed to lock out until the pressure drops significantly and the reset button is manually depressed

Always verify capacitor MFD requirements and shaft rotation (typically counter-clockwise lead end) during installation to ensure system longevity

also known as the A4F-D filter drier cartridge

If the stainless steel springs show signs of fatigue or heavy calcification

reducing labor time during HVAC maintenance

Carrier 338085-408 Limit Switch 323613-751 as the unit is designedAs a field technician, you know that a tripped main limit switch is often the only thing standing between a standard service call and a heat exchanger failure. The Carrier 338085 408 is a factory authorized L210 20F limit switch, engineered specifically for high limit thermal protection in Carrier, Bryant, and Payne furnaces. This OEM HVAC replacement part features a normally closed circuit that opens precisely at 210F to interrupt the gas valve