21
Problem
Possible Cause
Inspection
Remedy
High output voltage. 1. Faulty volt meter.
2. Faulty adjusting AVR.
3. Broken wire, loose
or disconnected
cable of the voltage
adjuster circuit.
1. Check the voltage of the volt meter
2. Check the
dial gauge [VR1] on the
AVR.
3. Check wiring of voltage adjuster.
Single wire disconnected: 240 to 280V.
Double wire disconnected: 260 to 300V.
1. Replace the volt meter.
2. Adjust the voltage properly.
3. Inspect and repair the
cable.
Abnormal frequency
or voltage drop
when load is
increased.
1. Unbalanced load.
2. Low rotation speed.
3. Over load.
1. Check the amperage of each
phase.
2. Check the rotation speed.
3. Check the amperage of each
phase.
1. Balance the current.
2.
Adjust appropriate
speed.
3. Decrease the load.
Can't be turned on
the circuit breaker.
1. The handle of the
breaker is positioned
between [ON] and
[OFF] position.
2. Over load.
1. Check the position of the handle.
2. Check the load.
1. Press the handle to the
[OFF] position first, then set
the handle to the [ON]
position to reset.
2. Decrease the load.
Summary of Contents for DGK25F
Page 1: ...File DGO 391_DGK25F SERVICE MANUAL DGK25F...
Page 8: ...5 4 General 4 1 Dimension Unit in the drawings below is shown by mm...
Page 9: ...6...
Page 29: ...11 Wiring Diagram 26...
Page 30: ...27...
