Graco HFR - Appendix D - ADM Error Codes

Appendix D - ADM Error Codes
76 3A2797ZAA
Appendix D - ADM Error Codes
Error
Code Error Name Error Description
Error
Type Cause Solution
A4A2
Red Hose
Overcurrent
An over current was detected
on the output
Alarm
Bad heaters Measure resistance of heaterA4A3
Red Inline
Overcurrent
A4A6
Red Blanket
Overcurrent
A4A7
Red Chiller
Overcurrent
High voltage
Measure voltage across the disconnect switch.
Voltage should measure between 190 and 264 Vac.
A4B1
Blue Inline
Overcurrent
Bad heaters Measure resistance of heaterA4B4
Blue Hose
Overcurrent
A4B5
Blue Blanket
Overcurrent
A4B8
Blue Chiller
Overcurrent
Shorted Temperature
Control Module
If temperature rises for a zone that has been
disabled, replace Temperature Control Module
A4H1
Motor Over
Current
High current has been
detected on a phase and has
been shutdown to prevent
damage
Bad internal wiring of the
motor
Replace motor
Short circuit of motor
wiring
Check wiring to the motor to ensure no bare wires are
touching and that no wires are shorted to ground
A4H3
Mix Head
Motor
Overload
Excessive Current to AC
Power Pack Motor.
Short circuit within AC
Power Pack Motor.
Replace motor.
A4M1
Motor Over
Current
Too much current is being
drawn from the wall
Low voltage from the
wall during load
Make sure the supply line is properly sized for the
load and is above the minimum voltage requirements
A4N1
Motor Over
Current
A hardware current fault has
occurred causing a system
shutdown
Short circuit of motor
wiring
Check wiring to the motor to ensure no bare wires are
touching and that no wires are shorted to ground
Motor rotor has become
locked
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.
A7A2
Red Hose
Control Fault
Unexpected current to
heater/chiller
Shorted Temperature
Control Module
If temperature rises for a zone that has been
disabled, replace Temperature Control Module
A7A3
Red Inline
Control Fault
A7A6
Red Blanket
Control Fault
A7A7
Red Chiller
Control Fault
A7B5
Blue Blanket
Control Fault
A7B1
Blue Inline
Control Fault
A7B4
Blue Hose
Control Fault
A7B8
Blue Chiller
Control Fault