Hubbell LX3000 Troubleshooting Condition Possible cause Checks Action, Start, Manual Crank #1

Page 7

Table 6-1 Troubleshooting

Condition	Possible cause	Checks	Action
	Batteries	Voltmeters should read	Check electrolyte
		at least 12.5 or 25 VDC	Test and recharge bad
		Check each battery in	Test and recharge bad
		Check each battery in	battery(s)
		bank for correct voltage	battery(s)
		bank for correct voltage	Replace battery(s) with
			good battery(s)
	Battery circuits	Check battery and	Clean and tighten
		ground connections	connections as
Engine does not crank			necessary
Engine does not crank		Check battery voltage
with MANUAL		Check battery voltage
START		Check battery cables
		and connections

		Check engine starter	Clean and tighten
		cables and connections	connections as
			necessary

Engine does not crank	MANUAL CRANK #1	Check battery voltage	Refer to schematic
using MANUAL	switch	while holding	Use volt/ohm meter to
START - Battery No. 1		MANUAL CRANK #1	determine which
		switch	component is faulty
Engine does not crank	MANUAL CRANK #2	Check battery voltage	Refer to schematic
using MANUAL	switch	while holding	Use volt/ohm meter to
START - Battery No. 2		MANUAL CRANK #2	determine which
		switch	component is faulty

If voltage checks indicate batteries and circuits OK then the engine starter or the pilot (or starting) contactors are faulty.

Image 7

Contents Hubbell Industrial Controls, Inc Model LX3000 Diesel Engine Fire Pump ControllerSet the time InstallationIntroduction Start Up InstructionsProgramming Controller TestingCharger Failure Test Battery Failure TestAutomatic Engine Cranking in Test Automatic Pressure StartOptional Remote Start End of Startup Testing SwitchesHigh Water Temperature Test Optional AC Power Failure Start if enabledHazardous voltage will shock, burn TroubleshootingManual Crank #2 Troubleshooting Condition Possible cause Checks ActionStart Manual Crank #1Manual Start Manual SwitchTroubleshooting AutomaticAuto Condition Possible cause Checks ActionManual Start Stop Page Pen replacement Pressure Switch / Recorder Changing the Chart PaperStart Pressure Pressure SettingsStatus LED’S Stop PressureSpecifications Battery Charger IntroductionSymptom Possible cause Solution Troubleshooting ChartLocation and Description of Control Settings