Faults and probable causes
Engine overheats / Engine coolant temperature too high
Faults Solution
Seacock is closed Open the Seacock
Seawater lter is clogged Close the Seacock and clean the lter
Seawater pump is sucking air
Check the position and seal of the seawater lter cover
and the suction hose
Fresh water circuit pump belt is slack or faulty Re-tighten or replace the belt
Seawater pump rotor is faulty Replace the rotor
Insufcient coolant
Fill with coolant and check that the cooling system is
leak-tight
Thermostat is malfunctioning Replace the thermostat
Cooling system is blocked Locate the problem and clean
Closed cooling circuit is dirty Clean and rinse
Loss of pressure in the closed cooling circuit
Check there are no leaks. Clean, inspect and check the
ll cap
Coolant is unsuitable
Use the recommended coolant (see technical
specications)
24
Troubleshooting
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