Graco 24G952 Instructions - Parts Manual page 25

Problem
Tank is not refilling.
3A1299K
Cause
Air solenoid valve not operating.
Leaking or damaged air lines.
Intermittent electrical connections.
Level sensors out of calibration.
Supply/feed system is off or empty.
Solution
Ensure the air solenoid valve is operating by
removing the outgoing air line to determine if
air is flowing.
Replace air solenoid valve.
Ensure the main air to tank connections are
secure.
Ensure the air lines from the air solenoid
valve to the fill valve or feed pump are
securely connected and that there are no
leaks.
Ensure all electrical connections to the air
solenoid valve are secure. See electrical
schematic in either the HFR or VRM
Repair-Parts manual.
Calibrate level sensor.
Check inside tank to ensure there is nothing
blocking the level sensor.
Check FCM. A red LED indicates a problem
with the module. See electrical schematic in
either the HFR or VRM Repair-Parts man-
ual.
Replace level sensor.
Replace FCM.
Check the material supply feed to the tank.
Replace fill valve.
Replace feed pump.
Troubleshooting
25