Page 38 of 47
28.06.13
DIS-14-ek
Rev Nr: 1
Appendix B
– Failure Guide
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSES?
WHAT TO CHECK?
HOW TO FIX THE PROBLEM IF
DETERMINED?
Dispenser is not activated
even though it is switched
“on”.
a) Fuse in the CPU is blown.
a) Check the fuse in the CPU.
a) Replace the fuse.
b) Power section of CPU card that
powers solenoids may be broken.
b) Check the CPU card.
b) Replace the CPU card.
c) Solenoid coil may be burnt.
c) Check if solenoid inducts or not.
c) Solenoid should be replaced if broken.
d) Pneumatic valves may be closed.
d) Check if the valves are open.
d) Open valves if closed, replace nitrogen
tube if necessary.
e) Engine may not generate pressure.
e) Check the engine.
e) Engine should be replaced if not
generating pressure.
f) No signal from the relay.
f) Check if a signal is received from the
relay.
f) Make sure that signal is received from
relay.
g) On-off switch is broken.
g) Check the button.
g) Replace the button if broken.
h) Thermic on the table may be
blown.
h) Check the thermic.
h) Thermic should be corrected if blown.
Nozzle dispenses gas but
nothing is displayed.
a) Pulser may be broken.
a) Check the pulser.
a) Pulser should be replaced.
b) Display may be broken.
b) Replace display and check if the problem
is fixed.
b) Display should be replaced if broken.
c) Display card may be broken.
c) Replace new display card and check if
the problem is fixed.
c) Display card should be replaced if
broken.
d) Meter distribution valve pin may be
removed..
d) Check the pin. (If motion transferring
shaft can be moved to both sides when
checked with hand, it is removed.)
d) Pin should be plugged back.
