Page 17 of 42
6. Fault finding
Prior to repairing the appliance it is necessary to reduce the pressure of the
air in the air chamber to zero and disconnect the appliance from the mains
supply.
Failure
Possible Cause Troubleshooting
Compressor does not start
No mains voltage Switched off mains breaker in
distribution system
No current in pressure switch Check Supply
Fuse Blown – replace the
defective fuse
Loose wire terminal – tighten
Power cord defective – replace
power cord
Interrupted winding of motor,
damaged
thermal protection
Replace motor
Defective capacitor Replace capacitor
Jammed piston or another
rotary part
Replace damaged parts
Pressure switch does not switch
on
Change pressure switch
The pointer of humidity indicator
is out of green zone
Leakage of air from pneumatic
distribution system
Control of pneumatic
distribution system – seal loose
connection
Large consumption of com-
pressed air
Do not exceed max. flow
Compressor often
switches on
Leakage of air from pneumatic
distribution system
Control of pneumatic
distribution system – seal loose
connection
Leakage of check valve Clean check valve, replace
sealing, replace check valve
The operation of
compressor is extended
Leakage of air from pneumatic
distribution system
Control of pneumatic
distribution system – seal loose
connection
Worn-out piston rings Replace worn-out piston rings
Dirty Filters Replace the dirty filter with new
ones
Red indicator lights – state of
overheating
Dirty inlet filters Replace the dirty filter with new
ones
High ambient temperature of air
Cooling fans don’t work
Ensure suitable conditions of
the environment
Replace faulty fans
Replace faulty thermo -switch
To Next Page
Loading...