Error Codes - Compac CNG Service Manual

Error Codes

Error Code
Err 3
Err 5
Err 8
Err 9o
Err 9b
Err 9c
Compac Industries Ltd.
Error codes indicate any problems with the dispenser. These problems are
indicated to you by codes displayed on the screen.
After you have physically corrected a fault, you need to clear the fault message
displayed on the control panel before normal operation can resume.
You can clear all fault codes by quickly pressing the start button or nozzle
switch five times. This also displays the tote information, which remains on the
screen for 10 seconds for each section of tote data.
You should read and understand all safety precautions before
operating or maintaining the Compac CNG Dispenser.
When servicing Compac CNG Dispenser, please follow the
recommendations in this manual. Otherwise you may injure yourself and void
the warranty.
Likely Cause
Loss of price in the C4000 head.
Loss of dispenser hose number in
the C4000 processor
The Stop switch is latched on.
Excessive reverse flow will cause this
fault. This can be caused by two
pressure banks being simultaneously
connected (this is usually caused by
check valves stuck in the open
position).
The meter has not started (Tubes are
not vibrating)
The meter has not zeroed
Fault in temperature device
Page 120
Recommended Action
 Set the unit price Unit Price
 Set the dispenser
number(s)Hose Number (see page
23)
 Establish why the Stop switch was
operated.
 If safe, reset the switch by rotating
the button clockwise.

This error is only shown in old code
versions before HIA 29.24.7CNG
 Check and clean all check valves.
 Check that the meter is plugged in.
Check the plug connections to and

from the meter.
 Re-power the dispenser.

If the connections are correct, then
there is a fault with the meter and it
must be replaced.
Replacement (see page 65)
 Check that the meter is plugged in.
 Check the plug connections to and
from the meter.
 Re-power the dispenser.

If the connections are correct, then
there is a fault with the meter and it
must be replaced.
Replacement (see page 65)
 Re-power the dispenser.

If the error does not clear after re-
powering the dispenser there is fault
www.compacngv.com
hose
Refer Meter
Refer Meter