Graco VRM Instructions Manual page 68

Appendix D - ADM Event and Error Codes Overview
Error
Code Error Name Error Description
Red Blanket
T9C6 Ctrl
Shutdown
Blue Blanket
T9C5 Ctrl
Shutdown
Red Inline
T9C3 Ctrl
Shutdown
Blue Inline
T9C1 Ctrl
Shutdown
PCB over temperature
Red Hose Ctrl
T9C2
Shutdown
Blue Hose
T9C4 Ctrl
Shutdown
Red Chiller
T9C7 Ctrl
Shutdown
Blue Chiller
T9C8 Ctrl
Shutdown
The voltage to the MCM has
Motor Control
V1H1 dropped to a level where
Undervoltage
performance is greatly affected
Red Blanket
V4A6
Overvoltage
Blue Blanket
V4B5
Overvoltage
Red Inline
V4A3
Overvoltage
Blue Inline
V4B1
Overvoltage
High line voltage
Red Hose
V4A2
Overvoltage
Blue Hose
V4B4
Overvoltage
Red Chiller
V4A7
Overvoltage
Blue Chiller
V4B8
Overvoltage
The voltage to the MCM has
Motor Control reached an unsafe level and
V4H0
Overvoltage has been shutdown in an
attempt to prevent damage
USB Update The ADM tried to upload a
W0U0
Failed system settings file but failed
Motor An error has been detected on
WBH1
Encoder Fault the motor position sensor
68
Error
Type Cause
Alarm
Alarm
Alarm
Alarm
Overheated
Temperature Control
Module
Alarm
Alarm
Alarm
Alarm
Tripped circuit breaker
Alarm Supply lines providing
low voltage
Alarm
Alarm
Alarm
Alarm
Incoming line voltage is
too high
Alarm
Alarm
Alarm
Alarm
Supply lines providing
Alarm
high voltage
System Settings file is
corrupt
Alarm
System Settings file is
intended for another
system
Failing sensors
Alarm
Loose connection
Solution
Turn conditioning zone off. Wait a few minutes. If the
condition does not clear or regenerates consistently,
replace heater module
Visually check circuit breaker for a tripped condition
Check incoming voltage to ensure it is above the
minimum operating voltage
Measure voltage across disconnect switch. Voltage
should measure between 190 and 264 Vac.
Check incoming voltage to ensure it is below the
maximum operating voltage
Replace the system settings file with a backup or new
file
Ensure that the first line in the settings.txt file contains
the text GMS. If not replace the file with the proper
system update file.
If error persists the motor will need to be replaced
Ensure the d-sub connector to the motor is connected
and the wiring is intact
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