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Noritsu V50 Neg Processor P2 Pump Has Stopped..


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Hi go a problem with our Noritsu v50 c-41 processor

When you turn it on in the morning a message come up P2 circulation pump has stopped but if you look around the racks and filters it is definitely circulating ok and the temp is increasing ok ..

If you let it sit for 10min the message goes away..

I have dumped Bleach tank and filled with water to check the circulation and the circulation is very very strong..

Is there a sensor that needs cleaning and if so where is it located?

Any help would be great thanks..



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  • 1 month later...

pump has more wires on its connector plug.  Pump has internal flow sensor which may defect although pumps is running.

Expensive way :  replace the pump with a new one.

Economy way  :   do some wiring change to cheat the CPU board / without replacing pump.    I have not done this again for many many years.

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