Onan 200 DFP - Page 13

TABLE 2. TROUBLESHOOTING
Untrained personnel should not attempt repair due to hazards which can result in
personal injury or death. Troubleshooting information is provided for qualified repair
personnel only.
AWARNING
SYMPTOM
CORRECTIVE ACTION
*1. Green RUN lamp lights following engine
start-up.
1. Indicates all engine systems are normal. No
corrective action required.
2. PRE HI ENGINE TEMP lamp lights. Engine
continues to operate.
2. Indicates engine has begun to overheat and engine
temperature has risen to approximately 205°F (97°C).
If generator is powering non-critical
and critical loads and cannot be shutdown,
use the following:
a. Reduce load if possible by turning off
non-critical loads.
b. Check air inlets and outlets and remove
any obstructions to airflow.
c. Open doors or windows in generator area
to increase ventilation.
If engine can be stopped, follow procedure
in step 3.
*3. HI ENG TEMP lamp lights. Engine shuts
down.
3. Indicates engine has overheated (engine temperature
has risen above 215°F/102°C) or coolant
level is low (sets with coolant level sensor).
Allow engine to cool down completely before
proceeding with the following checks:
a. Check coolant level and replenish if low.
Look for possible coolant leakage points and repair
if necessary.
b. Check for obstructions to cooling airflow
and correct as necessary.
c. Check for a slipping fan belt and tighten if
loose.
d. Reset control and restart after locating and
correcting problem. Contact an Onan Dealer
or Distributor if none of the above.
4. PRE LO OIL PRES lamp lights. Engine
continues to operate.
4. Indicates engine oil pressure has dropped to 20 psi
(138 kPa). If generator is powering
critical loads and cannot be shut down, wait until
next shutdown period and then follow step 5
procedure. If engine can be stopped, follow
procedures in step 5.
*5. LO OIL PRES lamp lights. Engine shuts down
NOTE: See also step 6.
5. Indicates engine oil pressure has dropped to
14 psi (97 kPa). Check oil level, lines and filters.
If oil system is okay but oil level is low,
replenish. Reset control and restart. Contact an
Onan Dealer or Distributor if oil pressure is not in
the range of 50 to 70 psi (345 to 483 kPa).
*Use these steps when troubleshooting two light control panels.
Run Lamp - See steps 1 and 17
Fault Lamp - See steps 3,4,6,7, and 13.
Other Faults - See steps 14, 15, and 16.
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