200 kW TACTICAL QUIET GENERATOR
The troubleshooting Malfunction/Symptom Index (WP 0009 00) lists common malfunctions found during operation or crew
servicing of the 200 kW TQG. In addition, it lists all of the fault codes that will be displayed on the Generator Set Control
(GSC). Use the Malfunction/Symptom index to identify the malfunction/symptom that best describes your problem and then
follow the instructions in the Work Package and Page No. column for the troubleshooting that you can do. These will refer
you to the Troubleshooting Procedures (WP 0010 00). In WP 0010 00 follow each step in sequence through the tests or
inspections listed in the Troubleshooting Procedures Table until a fault is identified. Most of the listings in the
Malfunction/Symptom index are keyed to Fault Codes that are described in WP 0009 00 and in the brief descriptions below.
Dedicated Fault Indicators
The Malfunction/Symptom index begins with procedures to use for troubleshooting the dedicated fault indicators on the
GSC. These are the lights and alarms that will tell you what problems are occurring that you can usually troubleshoot.
GSC Alarm Fault Codes
The GSC Alarm Fault Codes are a set of fault codes displayed in the upper display on the EMCP. These are engine fault
codes, protective relay function codes, and paralleling fault codes. They rely on programmed setpoints, but you can do some
troubleshooting that will correct the problems.
These special codes are monitored by the GSC. The operator can troubleshoot the low fuel level fault (SP1), but
maintenance must be notified for the codes associated with paralleling the TQG.
Digital Voltage Regulator (DVR) Alarm Fault Codes
When errors in the operation of the TQG output and voltage regulation are detected, these codes are displayed. Record DVR
alarm codes and notify maintenance when DVR Fault Codes are displayed.
Generator Set Control (GSC) Fault Codes, including Engine Control Module (ECM) Codes and Event
The GSC Fault codes are displayed on the upper display when faults are detected in the operation of the engine or of the
TQG. Sometimes they are displayed along with the Dedicated Shutdown Indicators and your troubleshooting will correct the
faults and they will not return. Some of the codes are Event Codes that simply announce a condition of the engine or the
TQG that needs attention. You can notify maintenance when these fault codes appear on the GSC. The GSC Fault Codes
consist of a component identification (CID) number followed by a Fault Mode Identification (FMI). If the code originates
with the Engine Control Module (ECM), the CID will be followed by an E before the FMI code. The meaning of the CID
FMI codes are given in the Malfunction/Symptom Index. When you see these codes, record them and notify maintenance.