Doosan GV222TIC Engine

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• Output insufficient
  Cause: Inspection by display module diagnostic tool
  Fix: Engine Generator set Others Repair . Replace Inspect gas fuel filter Inspect air cleaner Normal Adjust Replace Repair . Replace Check valve clearance Repair . Replace Normal Engine disassembly (valve assembly) Inspect cylinser head gasket for damage Retighten. Replace Normal Inspect air leakage of intercooler Inspect air leakage of air piping line Inspect ignition timing Inspect ignition system (ICM, Harness, Ignition coil, spark plug, boots etc.) Normal Adjust Check turbocharger Normal Disassemble engine Disassemble engine Polluted
• Oil pressure lowered
  Cause: Check if oil pressure gauge indicates wrongly
  Fix: To low Use recommened oil (replenish) Normal Check cooling temperature Check oil amount Retighten. Replace Inspect oil quality Check oil relief valve Water mixed in oil Disassemble engine Improper Replace with recommended oil Disassemble engine Too high Refer to engine overheat Normal
• Oil Consumption Excessive
  Cause: Cause according to use conditions 1. Excessive oil infusing 2. Continuous operation in low speed or extremely cold state
  Fix: Oil leakage Normal Retighten. Replace Check compressed pressure Inspect oil leakage Inspect air cleaner Check oil quality Replace with specified oil Engine disassembly (piston, cylinder liner) Internal External Clean. Replace Disassemble cylinder head (valve stem seal)
• Lack of coolant
  Fix: Replenish coolant, Replace cap
• Fuel Consumption Excessive
  Cause: Cause according to use conditions 1. Overload 2. Generator set nature gas leakage
  Fix: Retighten. Replace Normal Check valve clearance Adjust Inspect nature gas leakage Repair. replace (cylinder liner, piston ring, piston) Disassemble engine (valve assembly, piston, cylinder liner etc.) Inspect ignition timing Inspect compressed pressure Inspect ignition system (ICM, Harness, Ignition coil, spark plug, boots etc.) Normal Adjust
• Engine Starting Impossible
  Cause: Inspection of battery electorlytic liquid amount & gravity Inspection of loose electric wiring & short Inspection of starting switch
  Fix: Normal Retighten. Replace Adjustment. Recharging
• Engine stalled at 0rpm with 15.0mA and 10.0 o Btdc readings. FAULT
  Cause: A diagnostic fault exists, which will inhibit the ignition from firing.
  Fix: The ignition system will stop operating under a fault condition and will alert the operator to the problem in several ways: by changing the state of the Fire Confirm Out switch (switch opens), by turning on the alarm LED inside the Ignition Module, by changing the state of the Alarm Out switch (switch opens), by changing the state of the Fault Out switch (switch opens), and by displaying the Fault message.
• Engine running at 1000rpm with 15.0mA and 10.0 o Btdc readings, display shows WARNING. WARNING
  Cause: A diagnostic warning exists, which will alert the operator of a potential problem in several ways: by turning on the Alarm LED in the Ignition Module and by changing the state of the Alarm Out switch (switch opens).
  Fix: The ignition system will continue to operate under a warning condition while alerting the operator of a potential problem.
• Engine overheating
  Cause: Thermostat inoperative, Water pump defective, Restrictions in water passages due to deposit of scales, Ignition timing incorrect, Restriction in radiator core, Gases leaking into water jacket due to broken cylinder head gasket, Thermostat inoperative, Ambient temperature too low, Radiator leaky, Radiator hoses loosely connected or damaged, Radiator cap valve spring weakened, Water pump leaky, Cylinder head gasket leaky, Cylinder head or cylinder block cracked, Water pump bearing defective, Fan out of balance, Fan belt defective
  Fix: Replace thermostat, Repair or replace, Clean radiator and water passages, Adjust ignition timing correctly, Clean exterior of radiator, Replace cylinder head gasket, Install radiator curtain, Correct or replace, Retighten clamps or replace hoses
• Engine Overheated
  Cause: Check coolant level Check fan belt tension, wear or damage etc. Check fresh radiator tank cap
  Fix: External Normal Too low Cooling system Operating state 1. Overload 2. Radiator core clogged Normal Replace Normal Inspect radiator Replenish Clean cooling water passage Normal Engine disassembly Internal Retighten. Replace Engine disassembly Replace Inspect cooling water leakage Damage Repair . Replace Repair . Replace Check cooling water pump Repair. Replace
• Engine overcooling
  Fix: Adjust or replace fan belt
• Engine Knocking
  Cause: Too low Inspect combustion of fuel & oil (carbon residue of exhaust gas)
  Fix: Normal Adjust Unconfirmed Confirm Disassemble engine Check gas fuel quality Use specified gas fuel Inspect compressed pressure Inspect ignition timing Check valve clearance and cylinder head gasket crush Disassemble engine Normal Replace. Adjust
• Cooling system noisy
  Fix: Replace fan belt
• Battery Discharge
  Fix: Normal Replenish

Compiled from service & troubleshooting documentation across every generator set that uses the Doosan GV222TIC.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.