Graco S20 Operation page 37

Symbol Code
E1
E2
E4
E7
E7
E5
* LED (LE, page 28) will flash a code, pause, then repeat.
313526S
Table 4: Diagnostic Codes
Code Name Diagnosis
Runaway Pump running faster than
set runaway limit.
Diving Up Leak during upstroke.
Diving Down Leak during downstroke.
Disconnected Solenoid is disconnected. • Solenoid
Solenoid
Drum Empty Drum empty sensor has
tripped.
Drum Low Drum low sensor has
tripped.
Reed Switch The air motor has seen
multiple up strokes
without a down stroke, or
vice versa.
Maintenance Maintenance Counter has
Counter counted down to 0 from
Expired setpoint.
Remote DataTrak Operation
LED
Flash
Cause Code*
• Increased air
pressure.
• Increased fluid
output.
• Exhausted fluid
supply.
Worn piston valve or
packings.
Worn intake valve or
priming rod seal.
unplugged.
• Damaged
solenoid wires.
Replace empty
drum with full drum
to clear.
Replace empty
drum with full drum
to clear.
Damaged or
disconnected reed
switches.
Number of
cycles/gallons/liters
specified by
setpoint have
passed since last
reset.
Accessory
Light
Tower
Code
2 Red Solid
7 Yellow
Solid
6 Yellow
Solid
3 Red Solid
4 Red Solid
4 Red
Flashing
8 Yellow
Solid
5 Yellow
Flashing
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