Graco VRM 24F872 Instructions Manual page 73

Error
Code Error Name Error Description
Red Low
L111
Material Level
Low material level in tanks
Blue Low
L122
Material Level
Red High
L311
Material Level
High material level in tanks
Blue High
L322
Material Level
Red Auto
L6A1
Refill Timeout The tank stand has been filing
for a time greater than
Blue Auto
expected
L6B2
Refill Timeout
The volume of oil in the tank is
below the minimum level
MBH1 Low Oil Level
needed for the system to
properly operate
The motor magnetism has
Low Motor
MBN1 decreased to the point where
Performance
performance is greatly reduced
The MCM attempted to move
Pump Failed
N4A1 the pump but no movement
to Move
was detected
Pressure has risen to an
Thermal unsafe level due to thermal
P400 Pressure expansion of materials. All
Rise conditioning zones have
automatically been turned off.
313873J
Error
Type Cause
Deviation Tanks low on material
Deviation Loose/broken connection
Bad level sensor
Deviation
Defective fill valve
Deviation
No material is actually
Deviation
being fed
Loose level sensor
connection
Deviation
Bad level sensor
Low oil level
Loose/bad connection
Bad level sensor
Alarm
Leak in hydraulic driver
Leak in the hydraulic
reservoir, heat
exchanger
Prolonged exposure to
Advisory
heat or high voltage
Motor failure
Hydraulic power pack
failure
Loose/bad connection to
the linear position sensor
Failure of the linear
position sensor
Deviation
Motor no longer coupled
to hydraulic pump
Supply tube from
hydraulic pump to
manifold is loose or
broken
Broken motor shaft
Over-pressure valve
dumping to tank
Deviation High pressure
Appendix D - ADM Event and Error Codes Overview
Solution
Fill tanks with material
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 level sensor
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
Make sure the feed pumps are operating properly
Check for loose or disconnected wires or plugs
Replace level sensor
Check oil level and if low add more hydraulic fluid
Check to ensure the hydraulic oil level sensor is
properly connected to the MCM and that the wire has
not been damaged
Replace sensor
Inspect hydraulic driver end seals and early leak
detection tubing. Replace seals as necessary and
replace lost oil.
Inspect the hydraulic reservoir fittings and filter for
leaks. Repair or replace as necessary and replace
lost oil.
If error persists and performance can no longer
satisfy the user requirements the motor will need to
be replaced
Visually check to ensure the pump is moving, if not
ensure the motor is wired properly
If motor is moving but pump is not and pressure is not
building they hydraulic power pack may need
servicing
Check to ensure the linear position sensor is properly
connected to the MCM and the wiring has not be
damaged
Replace the linear position sensor
Reset coupler per specifications and retighten set
screws
Retighten or replace supply tube
Replace motor
Verify that no outside forces are stopping the pump
from moving, then inspect over-pressure valve for
damage or debris
Open the dispense valve manually or open the valves
to bleed pressure
73