“4069RT” Service and Parts ManualMarch 2014
Page 4-4
TROUBLESHOOTING -- ELECTRICAL SYSTEM TROUBLESHOOTING
E
LECTRICAL
S
YSTEM
T
ROUBLESHOOTING
The electronic control system used on this machine was designed for low maintenance
and long trouble free operation. The system consists of two microprocessor based
modules; The Matrix Module and the GP400 Processor. They communicate through a
low voltage digital signal called Can-Bus communication.
To protect against part failure or incorrect plug connections, the modules are fully short
circuit and reverse polarity protected. All electrical plug connections are waterproof to
promote longer trouble free operation and to increase terminal life.
NEVER ATTEMPT TO SUPPLY BATTERY POWER, OR VOLTAGE HIGHER
THAN 12 VOLTS TO ANY PART OR MODULE IN THIS SYSTEM, AS
CATASTROPHIC FAILURE OF THE MODULES MAY RESULT.
USE OF HIGH PRESSURE WASHING EQUIPMENT DIRECTLY ON THE
MODULES CAN FORCE WATER INTO SEALED CONNECTION AND CAN
CAUSE A TEMPORARY SYSTEM SHUT-DOWN. HIGH PRESSURE
WASHING WITHIN THE VICINITY OF THE MODULES IS HIGHLY
DISCOURAGED.
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