Troubleshooting | 11
0870569132_SV_SD_DC1010-1040C_-0005_IM_en
21 / 24
Problem
Possible Cause
Remedy
The machine does not start. The motor is not supplied
with the correct voltage.
• Check the power supply.
The motor is defective.
• Repair the machine (con-
tact Busch).
The machine does not reach
the usual pressure.
The internal filters (IIF, IDF)
are partially clogged.
• Replace the filter cart-
ridge.
The inlet filter cartridge (op-
tional) is partially clogged.
• Replace the inlet filter
cartridge.
One of the regulating valves
(VRV, PRV) is jammed in an
open position
• Dismantle, clean, check
and reassemble the regu-
lating valve (contact
Busch).
Stuck vanes.
• Free the vanes or replace
them.
The vanes (VA)* are worn
• Replace the vanes.*
The felt washer of the dis-
charge valve (DV) is partially
clogged (SV version only).
• Dismantle the discharge
valve and change the felt
washer.
The machine runs very noisily. The machine runs in the
wrong direction
• Check the direction of ro-
tation.
Defective bearings.
• Repair the machine (con-
tact Busch).
The machine runs too hot.
Insufficient cooling.
• Remove dust and dirt
from the machine.
Ambient temperature too
high.
• Observe the permitted
ambient temperature.
The internal filters (IIF, IDF)
are partially clogged.
• Replace the filter cart-
ridge.
The inlet filter (optional) is
partially clogged.
• Replace the filter cart-
ridge.
For the solution of problems not mentioned in the troubleshooting chart contact your
Busch representative.
* The vane type acc. to the specification (only for the SV 1025/1040 C)
