Tech arrived to no cooling call for upstairs system. System is approximately 5 years old and not cooling according to customer. Inspect system. Door was off unit as homeowner attempted to self diagnose. Found system to be blowing low voltage fuses when cooling comes in. Checked wiring and found a small short on Y circuit. Traced to outdoor unit and found exposed low voltage wiring at outdoor unit, bare wire resting against copper. Removed wiring and tested, system didn’t short anymore. While on site noticed gas line is not up to code, lacks water safety, and flue pipe is incorrect. Gave customer recommendations. Customer agreed only to wiring repair. Replaced low voltage wiring outside and verified operations after repair. Made notice of flood protection. System is operational. Thank you for letting TE CERTIFIED service your home.