Graco Merkur G15W Series Instructions - Parts Manual page 29

Symbol
312798J
Table 1: Diagnostic Codes
Code Code Name
Runaway Pump running faster than set
(DataTrak only)
E-1 Diving Up
E-2 Diving Down
E-3 Low Battery Battery voltage too low to stop
E-4 Service Problem with stopping runaway. • Damaged solenoid.
Component 1
(units with
runaway
protection only)
E-4 Disconnected
Solenoid
(units with
Solenoid is not engaging piston
runaway
protection only)
E-5 Service
Component 2
E-6 Blown Fuse Fuse is blown. Replace fuse;
Diagnosis
runaway limit.
Leak during upstroke.
Leak during downstroke.
runaway.
Solenoid is disconnected.
cup
Problem with sensing valve
movement.
see page 30.
DataTrak Operation
Cause
• Increased air pressure.
• Increased fluid output.
• Exhausted fluid supply.
Worn piston valve or packings.
Worn intake valve.
Low battery. Replace battery;
see page 30.
• Damaged valve carriage.
• Runaway (RT, F . 9) protec-
IG
tion may be enabled with
pump that is not equipped
with a runaway solenoid
valve. Enter setup screen and
disable runaway protection.
• Solenoid unplugged.
• Damaged solenoid wires.
• Bracket and solenoid not tight
against air valve housing.
• Sensors unplugged.
• Sensors mounted incorrectly.
• Damaged sensors.
• Damaged valve carriage.
• Faulty solenoid or solenoid
wiring.
• Extreme temperatures
(above 140°F [60°C]).
• Runaway (RT, F . 9) protec-
IG
tion may be enabled with
pump that is not equipped
with a runaway solenoid
valve. Enter setup screen and
disable runaway protection.
29