October 2008 "3072ES / 3772ES / 3772ES HD" Service & Parts Manual
Page 4-24
EZ-CAL HELP MESSAGES
In addition to the MODE messages detailed above, the GP400 provides a HELP message to identify
failure modes. Some error messages may also be identified by counting the number of times the red
LED flashes on the controller so that even without access to an EZ-Cal, some simple diagnostics are
possible. However, it is recommended to use an EZ-Cal to diagnose problems, and not rely on the
LED! The EZ-Cal provides a much higher detail of information.
• Connect the EZ-Cal (see illustration).
The display will read, “HELP: PRESS ENTER”.
• Press Enter to display the current message.
• Refer to the following list of HELP messages to better understand the nature of the message
or fault.
• If the GP400 does not register a fault, the display will read EVERYTHING OK.
Pressing ENTER twice will provide a scrolling message of the current message (if one exists) fol-
lowed by a log of previous operations and/or errors that occurred immediately prior, starting with most
recent. All messages are cleared whenever the system is powered down.
NOTE: When using the LED to attempt diagnosis, please note that a DUAL
FLASH code is indicated. The LED will flash on/off a certain number of
times, pause off for a short delay, then flash on/off a second certain
number of times, followed by a much longer pause off. The sequence
will then repeat.
INFORMATION ONLY Messages
The following are “information only” HELP messages which are not indicative of any possible problem
– there is no LED flash code (the LED remains on steady):
STARTUP! (no flash code)
• The system has just been powered on and is carrying out some initialization steps prior to being ready to
operate. If you select a function during this time, it may be locked out until you release then re-select it.
EVERYTHING OK (no flash code)
• There is no problem with the system – it is ready to operate in platform mode when a function is selected.
NOTE:
If this is the HELP message when a function is selected, check for
open-circuit switches or wiring.
GROUND MODE ACTIVE! (no flash code)
• There is no problem with the GP400 – it is ready to operate in ground mode when a function is selected.
CLOSE TRIGGER (no flash code)
• A platform function is selected but the trigger switch is not closed.
VEHICLE TILTED (no flash code)
• The vehicle is tilted beyond the limits, some functions may be prevented.
To Next Page
Loading...
