Arrived on site for cooling maintenance on 5 ton furnace. 2. Visually inspected condenser coil for debris/ dirty. 3. Inspected condenser fan motor. 4. Inspected condenser fan blades. 5. Inspected/ cleaned wiring connections. 6. Tested compressor/ condenser fan motor capacitor. 7. Checked compressor amp draw. 8. Checked condenser fan motor amp draw. 9. Inspected / replaced return filter. 10. Inspected return plenum for debris/ dirty. 11. Inspected evaporator coil. 12. Inspected blower motor/ blower wheel. 13. Checked blower amp draw. 14. Measured temperature differential from supply to return. 20 degrees measured. 15. Inspected drain lines and treated to prevent blockages 16. Rinsed condenser unit to promote heat exchange Found search, protector not lit up upon arrival suggesting there had been a surge. Upon further inspection, I found that the surge protector was wired in for a air handler and not a furnace. This would be why the indicator light was not lit up. I made sure to correc