For technicians performing refrigeration pressure testing

wall heaters

and 4-bolt flange units

the relay likely needs replacement

ASCO 323-593 Rebuild Kit Els PW 17895 For technicians performing refrigeration pressureAs a veteran tech, you know that field repairs on ASCO solenoid valves require precision components to maintain system integrity. The ASCO 323 593 Rebuild Kit is the professional grade solution for overhauling Series 8262 and 8263 two way valves, as well as select 8040 AC series units. This OEM solenoid valve repair kit includes the vital NBR (Buna N) seals, diaphragms, and stainless steel springs necessary to resolve internal bypass issues and