Commercial Refrigeration Maintenance Checklist for Small Retail

Glass-door merchandisers rely on steady airflow across evaporators. Staff should verify fans spin freely, drains are clear, and condensate pans are not overflowing—often the first sign of a clogged trap. Weekly tasks: wipe door tracks, inspect gasket seals for cracks (the dollar-bill pull test), and confirm defrost termination sensors are not iced over. Monthly tasks: brush condenser fins on reach-in compressors, verify suction line insulation integrity, and log case temperatures at peak shopping hours. Temperature excursions beyond +5 °C for chilled dairy categories usually mean regulatory risk. Partner with a refrigeration contractor for semi-annual leak checks, oil level verification on larger racks, and calibration of electronic expansion valves.