Arrived to find the thermostat was set to off. Set the t-stat to heat and raised the temperature to get the system to turn on. The air handler started yet the condenser did not. Inspected the condenser, found the Kool Guard was lit. Tested the high voltage to the condenser, had 243.2V and low voltage 26.5V common to yellow. Attempted to see if a fault code was present, the display was unresponsive. Removed the casing to the condenser to access the control board and found the in-line fuse was blown and it is a soldered-in fuse. Will need to order the board from York in the morning.