DIVEX MHE-02, Installation, Operating And Maintenance Manual

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KI-OM-523 R2 Chapter 5
Large flow in
overboard dump
line Leaking relief valve. Clean relief valve and reset. If valve
continues to leak, replace.
Large flow in
overboard dump
line Overboard dump valve
left open. Close valve.
Too many heaters on for
load on system. Refer to table to determine proper
number of heaters on or shut one heater
off and monitor temperature.
System will not
run, fault light is
on No water is coming to
system. Float switch
shut off. Supply water to system and purge. Make
sure that water is flowing out of system
through umbilical hose.
Faulty float switch. Repair or replace float switch.
Overheated water in the
heater tank. Make sure that water is flowing through
the system.
No water in heater tank. Re-prime system, making sure that
water is flowing through system.
Over temperature
control needs
adjustment. Readjust over temperature controls,
whichever one is turning the system off if
temperature of water is low.
Faulty over temperature
switch. Determine which over temperature
switch is open circuited and replace.
Refer to the electrical schematics for
wiring details.
System will not
run, pump
overload fault
light is on Pump overload relay has
tripped. Possible low voltage, single phase or
incorrect frequency. Check the input
voltage and frequency. Measure the
current on the pump motor to see if it's
within rating. Reset overload and start
system again.
Faulty fault indicator
relay, R1/R2. Replace.
Faulty overload relay. Replace.
Inlet pressure to
pump is low Faulty pressure
regulator. Replace.
Low pressure to system,
below 3.5 bar. Increase pressure and flow rate to the
system.
Pump varies in
speed Belts slipping. Check tension on belts. If tension is
loose, tighten belt by adjusting tension
bolts on motor mount.
Check belts condition. If belts are torn,
ragged, or in poor condition, replace.
PROBLEM POSSIBLE CAUSE SOLUTION