Bauer Kompressoren Verticus 5 - Page 130

Instruction Manual w VERTICUS 5 Compressor Units
D-20
RemedyCauseTrouble
Electric Control System
Control does not switch on No control voltage Check feed line
Control fuse defective Replace fuse, eliminate cause
Control current line cut off, line or
terminal loose
Tighten terminal
Thermal overload triggered Clear faults as described in the fol
lowing
Thermal overload relay for drive mo
tor triggered
Current consumption too high Check compressor drive
Overload relay set too low Correct setting
Control does not switch off, final
pressure safety valve blows off
Final pressure switch set too high Correct setting
Final pressure safety valve defective Replace safety valve
Automatic Condensate Drain
Drain valves do not close No control air Check control air line
Drain valves leaking Dismantle drain valve and clean
Drain valves do not open Condensate drain valve piston
jammed
Dismantle drain valve, clean or replace
valve
Solenoid valve does not close Solenoid valve faulty Check solenoid valve and replace if
necessary
No electrical signal Check for voltage from timer
Solenoid valve does not open Solenoid valve faulty Check solenoid valve and replace if
necessary
Continuous electrical signal Check electrical control circuit and
timer
Unsatisfactory drainage (lot of con
densate from manual valves)
Nozzles in 3rd and 4th stage drain val
ves clogged
Remove nozzles, clean