GB 16 02 MA
Fault finding
FAULT
Operating unit not function-
ing
PROBABLE CAUSE
Blown fuse(s).
Wrong polarity.
Valves not closing properly.
No power.
CONTROL/REMEDY
Check mechanical function of microswitches.
Use cleaning/lubricating agent if the switch
does not operate freely.
Check motor. 450-500 milli-Amperes max.
Change motor, if over.
Brown - pos. (+). Blue - neg. (-).
Check valve seals for obstructions.
Check microswitch plate position. Loosen
screws holding plate a
1
/
2
turn.
Wrong polarity. Check that brown is pos. (+),
Blue is neg. (-).
Check print plate for dry solders or loose
connections.
Check fuse holder are tight around fuse.
EV
EV
EV
EV
EVC Oper
C Oper
C Oper
C Oper
C Opera
aa
a
ating unit
ting unit
ting unit
ting unit
ting unit
Emer
Emer
Emer
Emer
Emerg
g
g
g
genc
enc
enc
enc
ency oper
y oper
y oper
y oper
y opera
aa
a
ation of
tion of
tion of
tion of
tion of BK/EC and EC
BK/EC and EC
BK/EC and EC
BK/EC and EC
BK/EC and EC
In case of power failure it is possible to operate all functions of the operating unit manually. First disconnect the multiplug
from the control box. Now manually turn the emergency control knobs.
The problem may be due to a blown fuse. The fuses are placed in the control box and are marked according to
functions. Fuses 7 and 8 are spare fuses.
Fuse type T 500 mA HARDI ref. no. 261125