Miller Big Blue Duo Pro 700 X Owner's Manual page 67

Trouble
Engine starts, but stops when Engine
Control switch is released.
Engine hard to start in cold weather.
Engine suddenly stops.
Engine slowly stopped and cannot be
restarted.
Battery discharges between uses.
Engine idles, but does not come up to
weld speed.
Engine does not run at idle speed.
Engine uses oil during run-in period;
wetstacking occurs.
Check battery and replace if necessary. Check engine charging system according to engine manual.
Have Factory Authorized Service Agent check control relay CR5, fuel pump, and fuel solenoid FS1.
Air in fuel system. See engine manual.
Check oil level. Automatic shutdown system stops engine if oil pressure is too low or engine temper-
ature is too high (see Section 5-5). Automatic shutdown system is inhibited for 30 seconds after
start-up.
Have Factory Authorized Service Agent check control relay CR5.
Use starting aid switch (see Section 6-2).
Keep battery in good condition. Store battery in warm area off cold surface.
Use fuel formulated for cold weather (diesel fuel can gel in cold weather). Contact local fuel supplier
for fuel information.
Use correct grade oil for cold weather (see engine manual).
Check oil level. Automatic shutdown system stops engine if oil pressure is too low or engine temper-
ature is too high (see Section 5-5). Automatic shutdown system is bypassed for 30 seconds after
start-up.
See engine manual.
Check fuel level.
Check engine air and fuel filters (see Sections 8-5 and 8-7).
See engine manual.
Turn Engine Control switch off when unit is not running.
Clean top of battery with baking soda and water solution; rinse with clear water.
Recharge or replace battery if necessary.
Periodically recharge battery (approximately every 3 months).
Have Factory Authorized Service Agent check current transformer CT1 and main control board PC1.
Check for obstructed throttle solenoid.
Circuit breaker CB14 may be open. CB14 automatically resets when fault is corrected (see Section 8-
8). Check for obstructed throttle solenoid. Have Factory Authorized Service Agent check TS1.
Have Factory Authorized Service Agent check control relay CR4.
Dry engine according to run-in procedure (see Section 11).
Remedy
OM-282302 Page 63