Thermostat was displaying faults with indoor and outdoor equipment. Found a bad uv bulb causing voltage drop and a dirty condensing cooling. Unwired uv from terminal block, cleaned condensing coil, and Reset equipment. Unit came up. Ran system through high stage cooling. Checked electrical components and refrigerant charge. System looked alittle low on 410a. Adjusted charge (used 1lb of 410a). Took temp reading on supply and return air. Customer wants to replace uv bulb/ballast. Quoted customer price for uv replacement. System is cooling at this time. Cleaned condensing coil on downstairs system