Designed with a standard 1/4-inch threaded connection

Facilitates accurate HVACR troubleshooting by acting as a definitive safety cutoff during electrical faults

this specific part number is calibrated for Natural Gas (NG) only

When troubleshooting common furnace ignition failure issues or lazy pilot flames that result in nuisance lockouts

airtight seal that restores factory-spec volumetric efficiency and prevents system contamination

York S1-024-35664-000 Relay Designed with a standard 1/4-inchThe York S1 024 35664 000 Relay is a heavy duty 30A HVAC switching relay engineered for reliable performance in residential and commercial climate systems. Formally designated as a 24VDC power relay, this factory approved OEM York replacement part is critical for managing high current induction loads, such as blower motors and compressors, in response to low voltage signals from the control board. Also identified by industry cross references AZ2280 1A