Nilfisk-Advance CS7000 Fuel Cell EcoFlex, Service Manual

Page: 178 / 440

Engine System - LPG 178 Service Manual – CS7000
Cranks but does not start – No Spark
Possible causes:
• Spark Control Module not powered up.
– Ignition request relay
– Woodward L Series Actuator not energizing ignition request relay
– Spark control module ground
• Crank Position Sensor
• Spark Control Module
• Wiring
• Ignition Coils (not likely that all 3 coils would fail at once)
Cranks but does not start (has sufficient spark)
Possible causes:
• No fuel
– Empty Tank
– Fuel lock off solenoid stuck closed
– Fuel lock off solenoid not energized
◦ Ignition request fuse – blown
◦ High coolant temp shut down relay – “Closed at rest” contacts not making connection
◦ Engine oil pressure switch - not opening for pressure
◦ Engine – Insufficient oil pressure to open switch
– Pressure Regulator
• Mechanical engine
– Insufficient compression
– Plugged Intake
– Plugged Exhaust
• Actuator
– Not opening throttle