Trouble Shooting The Lancer Electronic Ice Bank Control (Eibc); Checking For Normal Pcb Operation - lancer Spartan Operation Manual

6. TROUBLE SHOOTING THE LANCER ELECTRONIC ICE BANK CONTROL (EIBC)

6.1

CHECKING FOR NORMAL PCB OPERATION

WARNING
TERMINAL BLOCK HAS AC LINE VOLTAGE AND SHOULD BE COVERED WITH TAPE. TAPE SHOULD
COVER BARE ELECTRICAL CONNECTIONS TO PREVENT ELECTRICAL SHOCK.
!
ADVERTENCIA
CON CINTA. LA CINTA DEBE CUBRIR LAS CONEXIONES ELÉCTRICAS ABIERTAS PARA EVITAR EL CHOQUE
ELÉCTRICO.
AVERTISSEMENT
COUVERT DE RUBAN ADHÉSIF. LE RUBAN ADHÉSIF DEVRAIT COUVRIR LES CONNEXIONS ÉLECTRIQUES À NU
POUR EMPÊCHER LES DÉCHARGES ÉLECTRIQUES.
A. Turn power OFF or insure that power has been disconnected from dispenser.
B. Check condition of 0.5 amp fuse at location shown in diagram. If fuse is blown, trace cause of
short in valve wire harness and associated 24 VAC lines and replace fuse. If fuse is good,
continue with troubleshooting of PCB.
C. Disconnect leads from the terminal block that connect to the PCB, noting their specific location
for reconnection.
D. Disconnect both the Ice Bank probe (J2) and the Carbonator probe (J3) (if equipped)
connections from board.
E. Use a short copper wire, paper clip, or other means to short the Ice Bank probe terminals (J2)
on the PCB by touching all three (3) pins together.
F. Set Ohm test meter to measure continuity.
G. Reconnect power or turn dispenser ON.
Observe time and check continuity of the PCB
screw lug connections.
1. The following should be observed:
a.
b.
c.
H. Turn electrical power OFF for 15 seconds and
then back ON again to reset Carbonator timer.
Again, measure continuity of the PCB screw lug
connections.
1. Terminal 3 to 4: There should be
continuity. Use a short copper wire, paper
clip, or other means to short the Carbonator
probe terminals (J3) on the PCB by
touching all three (3) pins together. This
should be done before the 2.5 to 3.5 minute
time limit has elapsed. Measure the
continuity again between Terminal 3 to 4:
There should be NO continuity.
I. If all the above work as noted, then the board is functioning properly. Remove tape and
reconnect board. If any non-conformities are found, the PCB must be replaced (PN 52-
1423/01).
EL BLOQUE TERMINAL TIENE VOLTAJE DE LÍNEA DE CA, POR LO QUE HAY QUE CUBRIRLO
LE BLOC DE JONCTION A UNE TENSION DE SECTEUR ALTERNATIVE ET DEVRAIT ÊTRE
Terminal 3 to 4 (Carbonator):
During the first 2.5 to 3.5 minutes,
there should be continuity. After 2.5
to 3.5 minutes, there should be NO
continuity.
Terminal 2 to 1 (Compressor):
During first 4 to 6 minutes, there
should be NO continuity. After 4 to 6
minutes, there should be continuity.
Remove wire from J2 connector.
There should be NO continuity from 2
to 1.
You should be able to hear the "click"
sound of the relay closing when the
time delays end.
25
Figure 3