Graco 24G952 Instructions - Parts Manual page 24

Troubleshooting
Problem
Level sensor is sensing
material when material is
not present.
24
Cause
Level sensors out of calibration.
Level sensors blocked inside tank.
Intermittent electrical connections.
FCM errors.
Solution
Calibrate level sensor.
Replace level sensor.
Check inside tank to ensure there is nothing
blocking the level sensor.
Ensure the system main power is ON.
Ensure all electrical connections to the level
sensor are secure. See electrical schematic
in either the HFR or VRM Repair-Parts man-
ual.
Check tank stand circuit breaker in GMS
power distribution box to see if it has
tripped. See electrical schematic in either
the HFR or VRM Repair-Parts manual.
Check FCM circuit breaker in base cube to
see if it has tripped. See electrical schematic
in either the HFR or VRM Repair-Parts man-
ual.
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 FCM.
3A1299K