We specialize in repairing various faults in Siemens, Mitsubishi, Delta, ABB, GE, AB, Schneider, Emerson, Hollysys, and Supcon PLCs: CPU, no response upon power-on, SF/BF indicator errors, motherboard damage, communication faults, input/output faults, program backup, program decryption (including Siemens PLC decryption), digital module input/output fault repair, analog module input/output fault repair, temperature, thermocouple, resistance, current, and voltage fault repair, SF indicator error repair, and communication module fault repair.