Electronic controls have been incorporated into many aspects of our industry. Troubleshooting may cause grief for some service technicians who are unfamiliar with these types of controls. But many of the same troubleshooting procedures that are used with mechanical controls can be used to troubleshoot electronic controls.
When a technician encounters electronic controls on a system, many times a problem with the control can be diagnosed without knowing how it works internally. If the inputs to a controller are correct, then the outputs should be correct if the controller is operating normally.