Mini-Split Repair in Dover Plains, NY

Diagnosing a mini-split failure starts with understanding the symptoms: the outdoor unit runs but the head doesn't cool, the system cycles on and off repeatedly, there's ice buildup on the coil, or the compressor won't turn on. We perform a systematic evaluation that includes checking refrigerant pressure on both the high and low sides of the system, measuring voltage and amperage to electrical components, inspecting the expansion valve and metering device, and examining the coil for clogs or damage. / Once we identify the failing component, we proceed with the repair. If it's a refrigerant leak, we locate the source, repair the line or fitting, evacuate the system with a vacuum pump to remove all moisture, and recharge with the correct amount of refrigerant to manufacturer specification. If it's an electrical component like a capacitor or contactor, we replace it and verify proper voltage supply. If it's the compressor itself, we assess whether repair or replacement makes sense based on system age and warranty coverage. / After repair is complete, we run a full system test under both heating and cooling cycles, verify thermostat operation, check for any remaining leaks using electronic leak detection, and confirm that the system maintains proper superheat and subcooling values. We also walk through any maintenance steps that can prevent the same failure in the future, such as keeping the outdoor unit clear of debris and changing the filter on schedule.