Spectra Watermakers LB-20000, Installation And Operating Manual

Page: 51 / 65

51
Pump runs constantly, will
not turn off

Turn switch on control box to
RUN AUTO

Replace Speed Control

Toggle switch on control
box to RUN MAN or SER-
VICE
Display activates, but pump
will not run

Loose or broken pump wire
connection

Tanks are full (if equipped
with tank switch)

Speed control overheated

Check wiring at terminal block
inside control box

Check tanks– system cannot
be started if tanks are full.

Improve cooling
System runs, no product
water delivered to water
tanks, Product volume
gauge good, Diversion
valve shows deactivated on
display

Poor product water quali-
ty diversion valve open

Salinity probe out of cali-
bration or defective, bad
cable

Chlorine damage to mem-
branes

Pressure relief valve par-
tially open

Check for low feed pressure

Check for leaks at high pressure
hoses

Test product water with hand-held
tester– if over 500 PPM for 1 hour,
see ‘Poor Product Quality’ on p.50

Close pressure relief valve
No lights or display, system
does not operate

Display has gone to sleep

Remote display not con-
nected

No power to control box

Touch the screen to wake it up

Check display cable connections at
back of display and at control box

Check and reset main DC supply
breaker

Check for voltage control box, check
20A fuse on control board.

Try manual switch on control box: If
pump runs, then control or display
may be defective
System runs, no product
water delivered to water
tanks, Product volume
gauge good, Diversion
valve shows activated on
display

Diversion valve inoperative
or wiring fault.

Disconnected or broken
product tubing

Diversion valve plunger
stuck

Check wiring at diversion valve
and inside control box

Check product tubing

Exercise diversion valve by press-
ing the manual button top, retest.

Replace diversion valve.
Pump runs with loud noise

Low or high Boost
pressure

Intake blocked

Air in system

Adjust Boost pressure

Check sea strainer for leaks

Check fresh water flush module for
leaks

Re-prime system (restart)

Confirm voltage at Boost Pump,
check wiring connections.
Troubleshooting Spectra Connect Alarms
SYMPTOMS
PROBABLE CAUSE
REMEDY