Appendix D - Adm Error Codes - Graco HFR Setup

Appendix D - ADM Error Codes

Appendix D - ADM Error Codes
Error
Code Error Name Error Description
Red Hose
A4A2
Overcurrent
Red Inline
A4A3
Overcurrent
Red Blanket
A4A6
Overcurrent
Red Chiller
A4A7
Overcurrent
An over current was detected
on the output
Blue Inline
A4B1
Overcurrent
Blue Hose
A4B4
Overcurrent
Blue Blanket
A4B5
Overcurrent
Blue Chiller
A4B8
Overcurrent
High current has been
Motor Over detected on a phase and has
A4H1
Current been shutdown to prevent
damage
Mix Head
Excessive Current to AC
A4H3 Motor
Power Pack Motor.
Overload
Motor Over Too much current is being
A4M1
Current drawn from the wall
A hardware current fault has
Motor Over
A4N1 occurred causing a system
Current
shutdown
Red Hose
A7A2
Control Fault
Red Inline
A7A3
Control Fault
Red Blanket
A7A6
Control Fault
Red Chiller
A7A7
Control Fault
Unexpected current to
heater/chiller
Blue Blanket
A7B5
Control Fault
Blue Inline
A7B1
Control Fault
Blue Hose
A7B4
Control Fault
Blue Chiller
A7B8
Control Fault
76
Error
Type Cause
Bad heaters
High voltage
Bad heaters
Shorted Temperature
Control Module
Bad internal wiring of the
motor
Short circuit of motor
wiring
Short circuit within AC
Power Pack Motor.
Low voltage from the
Alarm
wall during load
Short circuit of motor
wiring
Motor rotor has become
locked
Shorted Temperature
Control Module
Solution
Measure resistance of heater
Measure voltage across the disconnect switch.
Voltage should measure between 190 and 264 Vac.
Measure resistance of heater
If temperature rises for a zone that has been
disabled, replace Temperature Control Module
Replace motor
Check wiring to the motor to ensure no bare wires are
touching and that no wires are shorted to ground
Replace motor.
Make sure the supply line is properly sized for the
load and is above the minimum voltage requirements
Check wiring to the motor to ensure no bare wires are
touching and that no wires are shorted to ground
Unplug the directional valve (so pressure will not
build) and try to move the motor again. If this
succeeds then the power pack may need to be
replaced. If the motor is still unable to move, the
bearings or hydraulic pump have likely failed in the
motor and will need to be replaced.
If temperature rises for a zone that has been
disabled, replace Temperature Control Module
3A2797ZAA