4: Operation 375, 375H, 400HH, 425, 425H T4F User Manual
02250223-036 R01
46 Subject to EAR, ECCN EAR99 and related export control restrictions.
High Comp Pres-
sure
Shutdown/Prevent
Startup
P1 (Dry) pressure is
above setpoint.
Pressure above 10 psi (recent
shutdown). Wait for pressure to
fall below 10 psi.
Transducers out of cali-
bration.
Transducers need to be cali-
brated using the gauge calibra-
tion subroutine (See “Pressure
Calibration” on page 26).
Engine Overcrank Shutdown
The maximum number of
engine crank cycles has
been exceeded
Check battery voltage &
recharge if necessary.
Check starter relay for short to
ground.
Check source voltage to starter
relay.
Engine Comm
Error
Shutdown/Prevent
Startup
The Single Axle Control-
ler is not properly receiv-
ing J1939 messages from
the engine ECM.
Check connections at engine
ECM and Single Axle Controller.
Check the termination resistor in
the harness ECM connector and
replace if necessary.
E-Stop Pressed
Shutdown/Prevent
Startup
The Single Axle Control-
ler will not power up/initial-
ize. (No message at
controller.)
Disengage E-stop.
The E-stop was used to
shut machine down.
Once conditions are deemed
safe, toggle the OFF/ON/START
switch OFF.
Eng Speed Too
Low
Shutdown
Engine speed dropped
below preset value for a
preset amount of time.
This is to protect the vul-
canized rubber drive cou-
pling between the engine
and compressor.
Check fuel level.
Check the inlet valve for prema-
ture opening during the warm-up
phase.
P1,P2 Signal Error Shutdown
Error loss of all transducer
inputs during run phase.
Check voltage source and
ground for good connection.
Low Fuel Level Warning
Fuel light is on. Compres-
sor warning light is on.
Fuel level is below 20%.
Add fuel soon.
Error Message
Warning/Shutdown/
Prevent Startup Description Recommended action
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