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AB Volvo Penta / Diesel Engine TAMD71B
12 Troubleshooting
12.1 Engine does not start
Starter motor does not turn engine over
REMEDY
Charge/replace the batteries (or connect up aux-
iliary batteries see chap. 5.6)
Switch on the main switches
Rectify any open-circuits/loose connections.
Check for oxidation on the contacts. If required,
clean them and spray with damp-inhibitor spray.
Contact authorized service personnel
Contact authorized service personnel. Do not try
to start the engine if there is a possibility that
there is water in the engine.
Replace the fuse on PCB 506-1
Starter motor turns over slowly
REMEDY
Charge/replace the batteries (or connect up aux-
iliary batteries see chap. 5.6)
Rectify any loose connections. Check for oxida-
tion on the contacts. If required, clean them and
spray with damp-inhibitor spray.
The starter motor turns the engine over but it does not start
REMEDY
Vent the fuel system as shown in chap. 9.8.4
Open the fuel cocks
Fill with fuel/connect the correct fuel tank
Fit new fuel filters (pre-filter and/or fine filters)
Vent the fuel system as shown in chap. 9.8.4
Check that fuel shut off valve has not been
switched on unintentionally
CAUSE
• Discharged batteries
• Main switches off
• Poor contact/break, electrical cables
• Starter motor/solenoid (control solenoid) mal-
function
• Water in the engine
• Blown fuse on the Control Unit panel
CAUSE
• Discharged batteries
• Poor contact, electrical leads
CAUSE
• Air in fuel system
• Fuel starvation or no fuel
– fuel cocks closed
– fuel tank empty/wrong tank on line
– fuel filters clogged (due to contaminants/
paraffin precipitation in the fuel as a result
of low outside temperature)
• Fuel shut off valve incorrectly connected/seiz-
ing
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