Reach-In Coolers Service stations with mini-marts have reach-in coolers for food and beverages. Typically, these are single units for a specific space with no temperature alarms, no standby equipment, no excess capacity and no standby storage space. Though these units can be costly, maintenance is typically poor and leads to electrical breakdown of motors, or mechanical parts breaking in the compressor. © 2004 The Hartford Steam Boiler Insurance and Inspection Company.     All rights reserved.