Westerbeke 5.5KW EDC 60HZ Operator's Manual page 36

ENGINE TROUBLESHOOTING
Problem Probable Cause
Verification/Remedy
Exhaust smoking problems 1. Blue smoke.
1. Incorrect grade of engine oil.
1a. Crankcase is overfilled with engine oil (oil is blowing out
through the eXhaust).
2. White smoke.
2. Engine is running cold.
2a. Faulty injector or incorrect injector timing.
3. Black smoke. 3. Improper grade of fuel.
3a. Fuel bum incomplete due to high back pressure in exhaust or
insufficient air for proper combustion (Check for restrictions in
exhaust system; check air intake.).
3b. Improperly timed injectors or valves or poor compression.
3c. Lack of air - check air intake and air filter. Check for proper
ventilation.
3d. Overload.
LCD DISPLAYS
No LCD Display
1. Check battery.
1.
Battery on.
2. 20 amp breaker off. 2. Tum breaker on.
Oil Pressure 1. Oillevellow/oilleak. 1. Check oil level, add 011 and repair leaks.
2. Lack of oil pressure 2. Test oil pressure. If OK, test oil pressure sendor, inspect oil
filter, inspect oil pump.
3. Ground connection. 3. Check ground connection.
4.
Faulty control module.
4.
Inspect all the plug connections/replace.
Coolant Temperature 1. Check system coolant level. 1. Add coolant. Check for leaks.
2. Check water pump drive belt. 2. Adjust belt tension. replace belt.
3. Faulty Temp sensor. 3. Check sensorlreplace.
4.
Ground Connection.
4.
Check ground circuit.
5. Faulty control module.
5. Check plug connections/replace.
Exhaust Temperature
1. Check sea water flow. 1. Inspect thru hull fitting, hose and strainer. Correct as needed.
2. Faulty exhaust tern p switch. 2. TesVreplace.
3.
Ground Connection.
3.
Check ground circuit.
4.
Faulty control module.
4.
Check plug connections.
5. Sea water pump.
5. Inspect impeller/replace.
Battery Voltage
1. Check alternator drive belt.
1. Adjust tension/replace if worn.
2. Check charge voltage.
2. Check excitation. replace/repair alternator
3. Check battery connections. 3. Check + and - cables from battery to engine.
4.
Faulty control module.
4.
Check plug connections/replace.
Generator Voltage
1. Check AC voltage output. 1. Adjust voltageltroubleshoot generator for cause.
2. Faulty control module. 2. Check plug connections/replace.
Generator Frequency 1. Check engine speed. 1. Adjust.
2. Check fuel supply. 2. Inspect filters/replace filters. Test fuel pump operation.
3. Amperage load. 3. Check load with amprobe.
LED Display 1. Compartment ambient temperature 1. Ventilate compartment.
edges tum pink.
too high.
NOTE: Heat will often change the color of an LCD display.
This will not effect the operation of the engine.
Engines & Generators
30