SER
VICING
115
PULSE Installation, Commissioning and Servicing Manual - Revision 19
Fault
Action
(f) Screen displays.
STACK
ERROR
Indicates stack events outside normal
parameters. May be a one-off event requiring no
action. Cleared by nozzle lift and logged within
the dispenser.
Repeated Stack Errors can indicate hydraulic
issues with valve function, leaks and nozzle func
-
tion.
(g) All nozzles ‘ignored’ by
dispenser, i.e. display does not
change.
y
Check Multiplexer, Barrier Module, Stack
Controller and cables.
y
Check hoses are active.
y
Check nozzles switches.
(h) A single nozzle is ‘ignored’ by
the dispenser, i.e. display does
not change.
y
Check inputs in Stack Test (see Servicing -
Section 12.14 Hydraulic Stack Test - STACK
/ Section 14.2 Stack Menu - STK MENU).
If detecting nozzle lift, check hose is
active.
y
Check nozzle switch.
(i) Dispenser ready to deliver, but
will not dispense fuel.
y
Check dispenser settings, numbers and
protocol are correct.
y
Check comms LEDs on Central Controller.
y
Check fuel can be delivered using Stack
Test (see Servicing - Section 12.14
Hydraulic Stack Test - STACK / Section 14.2
Stack Menu - STK MENU). This indicates
hydraulic operation.
y
Check fuel can be delivered in Stand
Alone mode (see Servicing - Section 12.12
POS/Standalone - POS / Section 14.4
Point of Sale Menu - POS). This indicates
correct internal systems operation.
y
Check fuel can be delivered with POS
enabled, cable attached. Failure at this
point indicates forecourt communications
issues.
(j) Screen Displays.
FLUID
ALARM
y
Fluid is present in the sump (where float
switch is fitted).
y
Jumper on P31 of the Mux Board (where
fitted) is not making contact.
y
May be a fault with the Barrier PCB.
