Graco PR70 Operation & Maintenance Manual page 75

Code-Class-Event
Shown on Errors Screen
T804-D-No Heat Z4
T901-A-Temp Switch Cutoff Z1
T902-A-Temp Switch Cutoff Z2
T903-A-Temp Switch Cutoff Z3
T904-A-Temp Switch Cutoff Z4
T9C1-A-Control Shutdown Z1
T9C2-A-Control Shutdown Z2
T9C3-A-Control Shutdown Z3
T9C4-A-Control Shutdown Z4
WM01-A-Current Fault Z1
WM02-A-Current Fault Z2
WM03-A-Current Fault Z3
WM04-A-Current Fault Z4
WMC1-A-Control Fault Z1
WMC2-A-Control Fault Z2
WMC3-A-Control Fault Z3
WMC4-A-Control Fault Z4
System Behavior Descriptions
System
Behavior
Reference
When this error is generated, a pop-up with the error-code will be shown until it is acknowledged by
pressing the Enter button (
1
will be stopped, and the foot switch will be disabled until the error-code is acknowledged. When the
error condition is cleared, the heat control may be turned back on from the Home screen. This error
will not disable purge or recirculation operation.
When this error is generated, a pop-up with the error-code will be shown until it is acknowledged by
2
pressing the Enter button (
tion is corrected. The display module can still be used but all machine commands sent will be ignored.
When this error is generated, a pop-up with the error-code will be shown until it is acknowledged by
pressing the Enter button (
3
switch will be disabled until the error-code is acknowledged. This error will not disable purge or recir-
culation operation. All features dependent on Fluid Control Module #2 will be disabled until the error
condition is corrected.
312759W
Description
No Temperature Rise, Zone #4
Over Temp Switch Open, Zone #1
Over Temp Switch Open, Zone #2
Over Temp Switch Open, Zone #3
Over Temp Switch Open, Zone #4
PCB Over Temperature, Zone #1
PCB Over Temperature, Zone #2
PCB Over Temperature, Zone #3
PCB Over Temperature, Zone #4
High Relay 1 Current, Zone #1
High Relay 1 Current, Zone #2
High Relay 1 Current, Zone #3
High Relay 1 Current, Zone #4
Unexpected Relay 1 Current, Zone #1
Unexpected Relay 1 Current, Zone #2
Unexpected Relay 1 Current, Zone #3
Unexpected Relay 1 Current, Zone #4
System Behavior Description
). The heat control will be turned off, any auto-sequencing in progress
). All physical machine operation will be disabled until the error condi-
). Any auto-sequencing in progress will be stopped and the foot
Troubleshooting
System
Behavior Ref
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