Pay in 4 interest-free payments of $20.18 Learn more
Ships within 48 hours · Estimated delivery Sep 15 - Sep 20
the internal slide may be stuck or the pressure differential is insufficient
The coating acts as an insulator to prevent "false" conductive paths
For contractors performing a blower motor replacement
Environmental Protection: NEMA 4X rated housing protects internal components against water ingress and corrosion
Manual Safety Reset: Ensures the system remains offline after a critical thermal event until a technician can verify equipment safety
York S1-3500-3121 Limit Switch 340155-7026 the internal slide may beWhen you are troubleshooting a mid efficiency or high efficiency furnace that is short cycling or displaying a four flash diagnostic code, the York S1 3500 3121 Limit Switch is the OEM replacement part required to restore safe operation. This is a normally closed (NC) safety device calibrated for an opening temperature of 165F and a closing temperature of 105F. As a genuine Johnson Controls component, it is designed for drop in compatibility with