Section 5: Troubleshooting; General Troubleshooting - Generac Power Systems MLT6SC Owner's Manual

Section 5: Troubleshooting

General Troubleshooting

WARNING
Risk of burns. Allow engine to cool before
draining oil or coolant. Failure to do so could
result in death or serious injury.
Some of the more common problems are listed in the
table below. This information is intended to be a check or
verification that simple causes can be located and fixed.
It does not cover all types of problems. Refer to the OEM
engine operator's manual for additional troubleshooting
information. Procedures that require in-depth knowledge
or skills should be referred to a Generac Mobile Products
Authorized Service Dealer.
Problem
Low oil pressure
shutdown
High coolant
temperature shutdown
Unit cranks, but will not
start
If problems persist, contact Generac Mobile Products, LLC at 1-800-926-9768 for assistance.
Owner's Manual for MLT6SC Light Tower
(000139)
Possible Cause
Low oil level.
Oil leaking from engine.
Oil pressure switch failure.
Low coolant level.
Blockage in radiator.
Leakage in coolant hoses,
engine block, or water pump.
Low fuel level.
Restricted air filter.
Solution
Verify oil level on dipstick. Add oil, if needed.
Inspect the engine for leaks.
Refer to OEM engine operator's manual to identify corrective action.
Add coolant if needed. Allow engine to cool, then check coolant
level in radiator. Restart engine and check coolant temperature.
Stop engine immediately if coolant temperature is 210 °F (99 °C) or
more.
Inspect radiator shroud and ducting for blockage and remove any
foreign matter.
Inspect for visible leaks. Verify tension of water pump serpentine
drive belt.
Remove load on generator and restart engine. Verify coolant
temperature and shut engine down immediately if it starts to
overheat. Refer to the OEM engine operator's manual for additional
information on engine overheating.
Check fuel level in tank. Verify fuel pump operation.
Inspect air filter for blockage. Refer to OEM engine operator's
manual for additional information.
Troubleshooting
41