40
TK 56117-6-OP-EN
Troubleshooting
The following information is provided to assist you in locating and
correcting minor problems. If these procedures do not correct the problem,
contact your nearest Thermo King dealer or authorized service center.
Condition
Possible Cause
Remedy
Unit switch ON - nothing
happens
Dead battery
Recharge or replace battery
Blown fuse
Turn unit off and correct
cause
Replace fuse
Poor battery connections
Clean and tighten
Shutdown alarm
See Alarm Codes section of
this manual
Unit maintenance switch is
switched OFF
Turn switch to ON position
Unit switch ON -
indicator lights come on
but engine does not
crank
Corroded battery
connections
Clean and tighten
Engine cranks but fails to
start
No fuel or wrong fuel in tank
Fill fuel tank
After filling a completely
empty tank, bleed fuel
system
Engine too cold
Preheat unit for correct
amount of time; see
Starting Instructions
Glow plugs defective
Replace glow plugs
Air in fuel system
Bleed fuel system
Also check if fuel lines are
tight and filters are clean
Air in injection pump
Bleed fuel system
Defective electric fuel pump
Replace fuel pump
Plugged electric fuel pump
Remove restriction
Engine stops after starting
Fuel filter obstructed
Replace filter element