Hubbell Diesel Engine Fire Pump Controller LX3000 - Manual (Page 8)

Table 6-1 Troubleshooting (Continued)
Condition Possible cause Checks Action
Water and fuel solenoid
circuits Check battery voltage
Check WATER and
FUEL Relay
Clean and tighten
connections
Replace Engine Relay
Board
Replace Main Logic
Board
Engine cranks but does
not start
Water and fuel solenoid
valves Check solenoids
Check fuel and water
lines
Check engine, fuel, fuel
filter
Replace solenoid(s) or
valve(s)
Complete necessary
engine repairs
Engine continues to
crank after starting
AUTOMATIC /
MANUAL SWITCH
set to AUTO
Or
Test Mode Active
Engine Crank Relay or
Main Logic Board
faulty
Engine Run signal
absent
Magnetic Pickup or
circuit faulty
Check Crank 1 and
Crank 2 relays on
Engine Relay Board
Check Run LED on
Main Logic Board
Check for Pickup signal
at Main Logic Board
Replace Engine Relay
Board.
Replace Main Logic
Board
Replace magnetic
Pickup
Engine does not crank
in TEST or AUTO
Engine cranks with
MANUAL START
Water and fuel
solenoids energized
Relay, or Main Logic
Board faulty Check Crank 1 and
Crank 2 relays on
Engine Relay Board Replace Engine Relay
Board
Replace Main Logic
Board
Engine does not crank
in AUTO when water
pressure decreases
Engine cranks with
MANUAL START
Pressure Switch, or
Main Logic Board
faulty Press P/S TEST button If cranking cycle begins
refer to Appendix B
Pressure Switch /
Recorder
Replace Main Logic
Board
Table 6-1 Troubleshooting (Continued)