Heidelberg SM74

benjo

Member
Joined
2020
Posts
9
Geo
Herefordshire
Hi I have a problem with the techno trans on the SM74 5 colour. Basically after the fount system has warmed up an error comes up saying d-circuit flow controller error and cuts out the system. I’ve just cleaned the system out and as soon as I’ve put fresh fount in it does it again. Can anyone help?
Many thanks
 
Hi sir
Can you give the model of technotran with some PIC IC of the model , in order to help you??

Blessing
 
  • It’s a techno trans beta d. And these are the messages that keeps coming up and I keep flushing the system out and put fresh fluid in there and it’s still coming up with that error even that I’ve only just flushed it out and put fresh filters and fluid in.
    Hope this makes sense
    Thanks
     

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    Hi sir:

    Check this:

    1) Dampening solution supply interrupted.

    2) Dampening solution connector not
    properly connected.

    3) Supply pressure too low.

    4) Level sensor dirty.

    5) Level sensor defective

    6)Solenoid valve blocked by alcosmart.

    7)
    Dampening solution tank:

    a)Drain dampening solution, clean
    the tank.

    b)Check and / or replace the filter

    c)Check the float switch for soiling
    and clean it

    Dampening solution feed
    pump:

    e)Check / clean foot filter

    Dampening solution
    circulating pump:

    Check / clean foot filter/and filter in pump outlet

    Blessing
     
    Hi can you send pictures or explain how to clean the foot filter in the pump outlet??

    or how do I check the dirt filter??
    Also how do I check the flow controller??

    Is there any pictures you can send explaining how to do them please?

    many thanks
     
  • Also where’s the dirt filter preceding the heat exchanger??
     
    Also where’s the dirt filter preceding the heat exchanger??
    The filter is beside the D pump. Its at Y type Splitter. You unscrew the cap and take out filter, clean and it should be OK.
    Is the problem solved ? I had similar problem.
     
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