Electrical Troubleshooting - Northern Lights OM-C3 Operator's Manual

Electrical Troubleshooting

Symptom
Undercharged electrical system
Battery uses too much water
Batteries will not charge
Starter will not crank
Starter cranks slowly
Starter and hour meter functions;
rest of electrical system does not
function
Troubleshooting
Problem
Excessive electrical load from added
accessories.
Excessive engine idling.
Poor electrical connections on battery,
ground strap, starter, or alternator.
Defective battery.
Defective alternator.
Cracked battery case.
Defective battery.
Battery charging rate too high.
Loose or corroded connections.
Sulfated or worn-out batteries.
Stretched poly-vee belt or defective
belt tensioner.
PTO engaged (if equipped).
Marine gear control engaged.
Loose or corroded connections.
Low battery output voltage.
Faulty start circuit relay.
Blown main system fuse.
Low battery output.
Crankcase oil too heavy.
Loose or corroded connections.
Blown fuse on magnetic switch.
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Solution
Remove accessories or install higher
output alternator.
Increase engine rpm when heavy
electrical load is used.
Inspect and clean as necessary.
Test battery.
Test charging system.
Check for moisture and replace as
necessary.
Test battery.
Test charging system.
Clean and tighten connections.
See your authorized servicing dealer
or engine distributor.
Adjust belt tension or replace belt.
Disengage PTO.
Disengage marine gear.
Clean and tighten loose connections.
See your authorized servicing dealer
or engine distributor.
See your authorized servicing dealer
or engine distributor.
Replace fuse.
See your authorized servicing dealer
or engine distributor.
Use proper viscosity oil.
Clean and tighten loose connections.
Replace fuse.
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