Graco GMAX 3400 Operation page 23

Secondary Menu - Stored Data and
WatchDog Pump Protection Modes
1. Perform Pressure Relief, steps 1 - 4 if they have
not already been done.
2. Turn power switch on while holding DTS button
down.
3. The sprayer model briefly displays (e.g. 5900),
SERIAL NUMBER scrolls past and then serial
number (e.g. 00001) displays.
4. Short press DTS button and MOTOR ON scrolls
past and then total motor run hours are displayed.
3A6400A
5. Short press DTS button. LAST ERROR CODE
scrolls by and last error code is displayed; e.g.
E=07. See sprayer Repair manual for additional
information.
6. Press and hold DTS button to clear error code to
zero.
LED Display
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