Clark's Tip · HVAC MaintenanceSchedule pre-summer and pre-winter service windows
The two visits that matter most are pre-summer (April) and pre-winter (September to October). Pre-summer catches RTU economizer faults, refrigerant charge issues, and compressor problems before the first 90-degree day forces the unit to run flat-out. Pre-winter catches boiler combustion problems, ignition controls, and the safety switches that trip on the first really cold night. The shops booked solid in July and January are the ones who skipped the off-season visit - that timing is the single most valuable thing a maintenance plan delivers.