Membership maintenance. 6yr old ICP vertical – garage. A/H- flushed and vacuumed drain line. Tested float switch function. Checked all wiring. Unit has 3 OXY-PURE Air 24v lamps. Last replaced in 2022. Lights are dim and beginning to darken on the inside. I recommend replacement. Blower wheel and coil surface are clean/free of biological growth. Changed customer supplied return filter. Took temperature split at return and supply Plenum. C/U- noticed existing arma flex is dry rotting, and coil is beginning to corrode due to close proximity to the saltwater. Took compressor amp draw. Checked capacitor microfarad reading. Checked refrigerant pressures and temperatures. System is running well at this time. Replaced Armor flex on suction line at condensing unit. Installed corrosion grenade on liquid line at condensing unit.