Display Cabinets 6-Month PPM Visit

This 6-month planned preventive maintenance checklist is designed for retail display cabinets, covering critical refrigeration and operational checks. It guides technicians to verify case temperature and probe accuracy, inspect and service evaporator fans, secure mounts and panels, clean air return grilles and honeycombs, and perform comprehensive leak tests on coils, TEV connections, service points, solenoids, isolation valves, and interconnecting pipework. Steps include flushing and checking condensate drains, testing defrost heaters, confirming lighting operation and replacing lamps or starters, repairing damaged insulation, sealing service entries, and testing expansion valve function and phial positioning. It also calls for a manual forced defrost, verifying termination temperature, assessing AHT auto-defrost drainage channels for damage or scorching, and taking cabinets out of service if hazards are found. The workflow captures warranty status, quote requirements, and store sign-off.