Troubleshooting
WARNING_ab
Risk of electrical shock, risk of damage to equipment.
Electrical installation work must only be executed by qualified personnel that knows and observes the following regulations:
- IEC 364 or CENELEC HD 384 or DIN VDE 0100, respectively,
- IEC-Report 664 or DIN VDE 0110,
- BGV A2 (VBG 4) or equivalent national accident prevention regulation.
CAUTION_ac
During operation the surface of the compressor may reach temperatures of more than 70 °C.
Risk of burns!
Let the compressor cool down prior to a required contact or wear heat protection gloves.
Problem Possible Cause Remedy
The compressor does not reach the usual pres-
sure
The drive motor draws a too high current
(compare with initial value after commission-
ing)
Filling the system takes too long
Building up pressure in the system takes too
long
The pressure system or pressure line is not
leak-tight
Check the hose or pipe connections for possi-
ble leak
The pressure relief valve/regulating system is
misadjusted or defective
Adjust, repair or replace, respectively
The screen (715) in the gas inlet (b) is partially
clogged
Clean the screen (715)
If cleaning is required too frequently install a
filter upstream
In case a filter (b) is installed on the gas inlet
(b):
The filter (b) on the gas inlet (b) is partially
clogged
Clean or replace the inlet air filter (b), respec-
tively
Partial clogging in the suction, discharge or
pressure line
Remove the clogging
Long suction, discharge or pressure line with
too small diameter
Use larger diameter
The valve disk of the inlet non-return valve is
stuck in closed or partially open position
Disassemble the inlet, clean the screen (715)
and the valve (714) as required and reassem-
ble
Internal parts are worn or damaged Repair the compressor (Busch service)
The compressor does not start The drive motor is not supplied with the cor-
rect voltage or is overloaded
Supply the drive motor with the correct volt-
age
The drive motor starter overload protection is
too small or trip level is too low
Compare the trip level of the drive motor
starter overload protection with the data on
the nameplate, correct if necessary
In case of high ambient temperature: set the
trip level of the drive motor starter overload
protection 5 percent above the nominal drive
motor current
One of the fuses has blown Check the fuses
The connection cable is too small or too long
causing a voltage drop at the compressor
Use sufficiently dimensioned cable
MI 1502 BP Troubleshooting
0870152627 / 101117 page 9
To Next Page
Loading...
Need help?
General
