Nordson PURBlue EC - Troubleshooting Tables by Problem

Troubleshooting
6-9
P/N 7135268B
E 2008 Nordson Corporation
PURBlue EC
Troubleshooting Tables
When a fault occurs the heaters automatically turn off. The heater key is
used to turn the heaters back on after correcting a fault condition.
Melter not Functioning
Problem Possible Cause Corrective Action
1. No line voltage − Connect line voltage
2. Main switch not
switched on
− Switch on main switch
3. Main switch defective − Replace main switch
4. Main circuit breaker
activated
− Switch on main circuit breaker
5. Main circuit breaker
activated again
Check for short circuit in melter or
accessories
−
6. 24 V
DC
power supply
defective
− Replace
A Heated Component does not Heat
Problem Possible Cause Corrective Action
1. Component is
disabled / turned off
− Enable / switch on
Zero degrees = switched off
2. Component does not
heat
− Check LEDs on main board; replace
fuses if necessary
Replace heater cartridge
No Line Speed Signal
Problem Possible Cause Corrective Action
1. Parent machine not
operating
− Start up parent machine
2. Polarity of line speed
voltage input is
reversed
− Reverse polarity
3. Encoder defective − Replace