Nordson® F1 Fault – Installing New Hose

You have just spent half an hour removing an old glue hose and installing a new one, powered up your Nordson® ProBlue® system and, BAM…..A F1 Fault Light. That bites! Fortunately, it is a quick and easy fix. 

This indicates there is a compromise in one of the electrical connections. In other words, one of the 2 connections is not fully plugged in.  Try these steps to resolve:

 • Power off melter.
 • Check both electrical connections on both ends of the hose.
 • Turn power on for melter and you should be good to go. 

If you are still having issues, call us for free technical support…..800-235-8090 or email at

Have an old worn out glue hose?  Call us for a replacement because money savings are signficant over the OEM prices, and we provide shorter lead times, a warranty and 100% money back guarantee, if you are not satisfied. 

Angela Wagley

We believe in empowering companies with optionsto grow their business on their terms, not ours

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