TROUBLESHOOTING USING DVR FAULT CODES - Continued
CORRECTIVE ACTION - Continued
Check fuses F1-10A, F2-10A, F3-10A and replace defective fuses.
a. Open fuse holder F1, F2, and F3.
b. Check resistance, F1-1 to F2-1, F2-1 to F3-1, and F3-1 to F1-1. Resistance
should be less than 1 ohm. If open or above 1 ohm, troubleshoot wires
Check resistance, F1-2 to F2-2, F2-2 to F3-2, and F3-2 to F1-1. Resistance
should be between 0.2 to 0.4 ohms. If open or above 0.4 ohms, troubleshoot
wires between F12, F2, and F3 and transformer PT2 and PT3, and
transformer primary winding, PT2, PT3 before removing wires from A3-26,
A3-28, and A3-30.
Check resistance, A3-26 to A3-28; A3-28 to A3-30, and A3-30 to A3-26.
Resistance should be between 0.2 and 2.0 ohms. If open or above 2 ohms,
troubleshoot secondary winding of PT2 and PT3 and wires between A3-26,
A3-28 and A3-30 to PT2 and PT3.
Measure AC voltage between pins A3-20 and A3-22, A3-22 and A3-24, and
A3-20 and A3-24.
Voltages should be the same and at the proper ratio to the output voltage in
accordance with parameter :02. If not, test generator (WP 0096).
If the problem is not resolved, replace DVR (WP 0041).
Verify the problem is resolved.
The DVR detected that the generator voltage has been more than the overvoltage trip point
(parameter :11) for more than the amount of time specified by the overvoltage trip time
Adjust VOLTAGE adjust potentiometer on control panel counterclockwise to
If paralleled to other generator sets, check voltage setting on other sets.
Start generator set and verify that problem has been resolved.