Graco EFR Instructions-Parts List Manual page 29

Error Code Code Description
F4NX Setting Exceeds
Max Output
L1TA Red Tank Sensor
Failure
L2TA Red Low Material
L3TA Red High Material
Level
L6TA Red Auto Refill
Timeout
L1TB Blue Tank Sensor
Failure
L2TB Blue Low Material
L3TB Blue High Material
Level
3A6165J
Cause
Pump cannot cycle fast enough to
achieve the desired flow rate
Bad level sensor(s)
Tank low on material
Loose/broken connection
Bad level sensor(s)
Defective fill valve
Bad level sensor
No material is actually being fed
Loose level sensor connection
Bad level sensor
Bad level sensor(s)
Tank low on material
Loose/broken connection
Bad level sensor(s)
Defective fill valve
Bad level sensor
Solution
Reduce flow rate
Increase pump sizes
Replace level sensor(s)
Fill tanks with material
If the tanks appear to have plenty of
material, check to make sure the
level sensor(s) is connected to the
proper port and that the cord is not
damaged.
Replace level sensor(s)
If the tanks appear to have plenty of
material, check to make sure the
level sensor is connected to the
proper port and that the cord is not
damaged
Replace fill valve is leaking
Replace level sensor
Make sure the feed pumps are
operating properly
Check for loose or disconnected
wires or plugs
Replace level sensor
Replace level sensor(s)
Fill tanks with material
If the tanks appear to have plenty of
material, check to make sure the
level sensor(s) is connected to the
proper port and that the cord is not
damaged.
Replace level sensor(s)
If the tanks appear to have plenty of
material, check to make sure the
level sensor is connected to the
proper port and that the cord is not
damaged.
Replace fill valve is leaking
Replace level sensor
Troubleshooting
29