Nordson PURBlue EC - Others

Troubleshooting
6-14
P/N 7135268B
E 2008 Nordson Corporation
PURBlue EC
Others
Problem Possible Cause Corrective Action
1. Leakage at pump
Pump shaft seal is worn Tighten gland
gpp
shaft seal
− Replace pump
2. Material pressure too
low, output quantity
too low
Pump is worn Replace pump
3. Pump blocked
Processed material too cold Correct temperature setting (observe
data sheet of material manufacturer)
Foreign material in pump Replace pump
4. Leakage at gun
during heatup phase
Safety valve does not open
(expansion pressure)
Replace safety valve
LEDs of Motor Controller
During operation the operating mode of the motor controller is displayed by
two LED’s on the front of the unit.
Fig. 6-2 LEDs
LED display Operating mode
Green Red
On Off Motor controller enabled
On On Mains switching and automatic start blocked
Flashing Off Motor controller blocked
Off Flashing (every 1 s) Fault message or motor controller is being parameterized
Off Flashing (every 0.4 s) Overvoltage or undervoltage shutdown
Off Off Missing voltage supply