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Geco Driver Issue: Feeder Not Turning On, Works on Fan Ports - Troubleshooting Tips

raf2 7902 12
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  • #1 16685658
    raf2
    Level 10  
    Posts: 111
    Rate: 40
    I have a problem with the above driver that it does not turn on the feeder. When I swap ports, for example a fan, it works. What could be the reason ? For any info. thanks in advance
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  • #2 16685720
    Magister_123
    Level 36  
    Posts: 2888
    Help: 378
    Rate: 967
    Is the executive element in the form of a relay finished?
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  • #3 16685934
    raf2
    Level 10  
    Posts: 111
    Rate: 40
    I don't know how to check it? where is this item located ??
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  • #4 16685993
    Magister_123
    Level 36  
    Posts: 2888
    Help: 378
    Rate: 967
    raf2 wrote:
    where is this item located ??

    You have to disassemble the driver. But since you asked the above question, I conclude that you do not have the proper knowledge to repair the fault.
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  • #5 16686138
    raf2
    Level 10  
    Posts: 111
    Rate: 40
    If I had the knowledge I would not return the guitar. Probably it is about replacing some parts of the relay ??
  • #6 16686327
    Magister_123
    Level 36  
    Posts: 2888
    Help: 378
    Rate: 967
    raf2 wrote:
    Probably it is about replacing some parts of the relay ??

    You need to check if it is a relay. It may well be cold solder or a damaged microprocessor. Do you have a meter, soldering iron, tin, something to suck off tin?
  • #7 16687676
    raf2
    Level 10  
    Posts: 111
    Rate: 40
    Yes of course
  • #8 16688727
    Magister_123
    Level 36  
    Posts: 2888
    Help: 378
    Rate: 967
    I don't understand what you are waiting for. The tile should have been pulled out a long time ago and its good photos pasted on this topic.
  • #9 16688745
    raf2
    Level 10  
    Posts: 111
    Rate: 40
    Sorry, I will paste
    Attachments:
    • Geco Driver Issue: Feeder Not Turning On, Works on Fan Ports - Troubleshooting Tips 20170909_090422.jpg (1.71 MB) You must be logged in to download this attachment.
  • Helpful post
    #10 16689632
    Magister_123
    Level 36  
    Posts: 2888
    Help: 378
    Rate: 967
    On the 'łok' the first relay from the top looks tired.
    You need to find the feeder relay and measure the presence of 12V direct voltage on the coil contacts at the time the supposed work of the feeder. If voltage appears, the relay has died. Just be careful because you will also have 230V mains voltage there !!!
    The second safer option is to replace the relay. So you swap the fan and feeder relay places.
    Is the driver working for you long?
  • Helpful post
    #11 16689643
    jurek54
    Level 14  
    Posts: 107
    Help: 7
    Rate: 73
    This white relay is from the feeder. Contact has burned out. I bought the identical on a well-known auction site. The exchange did the trick.
  • #12 16689864
    raf2
    Level 10  
    Posts: 111
    Rate: 40
    I have a boiler for about 9 years. Indeed, this white as if it was slightly sooty
  • #13 16694690
    raf2
    Level 10  
    Posts: 111
    Rate: 40
    Thanks to jurek54, the replacement of this relay really helped.
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Topic summary

✨ The discussion revolves around a Geco driver issue where the feeder does not turn on, although it operates when connected to fan ports. Users suggest potential causes, including a faulty relay, cold solder joints, or a damaged microprocessor. Troubleshooting steps include checking for 12V voltage on the relay coil and considering the replacement of the feeder relay, which may show signs of wear or damage. One user successfully resolved the issue by replacing a burnt contact relay, indicating that the driver had been in use for about nine years.
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FAQ

TL;DR: In this thread, 1/1 fixes came from replacing the feeder’s white relay; "the replacement of this relay really helped." [Elektroda, raf2, post #16694690] Why it matters: If your Geco driver won’t start the feeder but other ports work, this FAQ shows a fast, safe relay-focused fix for DIYers and technicians.

Quick Facts

What most often causes a Geco feeder not to turn on while fan ports still work?

A failed feeder relay is the prime suspect. In this case, the white relay’s contact was burned, stopping power to the feeder. Replacing that relay restored operation. Other faults are possible, but the relay was the confirmed fix in the thread. [Elektroda, jurek54, post #16689643]

How can I quickly confirm a bad feeder relay without measurements?

Swap the fan and feeder relays on the driver board. If the feeder starts working after the swap, the original feeder relay is defective. This is a safe, fast A/B test before ordering parts. Revert the swap after diagnosis. [Elektroda, Magister_123, post #16689632]

How do I test the relay coil voltage safely?

Command the feeder to run and measure across the relay coil. You should see approximately 12 V DC at that moment. Remember, mains 230 V also exists on the board; isolate, use probes carefully, and follow lockout practices. “Be careful because you will also have 230V.” [Elektroda, Magister_123, post #16689632]

Which relay should I buy to fix the feeder output?

Buy an identical replacement for the white feeder relay on your board. A like-for-like swap resolved the burned-contact failure reported by another user. Match coil voltage, pinout, and footprint for drop-in fit. [Elektroda, jurek54, post #16689643]

Is age a factor here?

Yes. The reported driver had about 9 years of service when the relay failed. That points to contact wear from repeated switching as a plausible cause. This timeline can guide preventive replacement in similar units. [Elektroda, raf2, post #16689864]

Step-by-step: How do I replace the feeder relay?

  1. Power down, disconnect mains, and remove the driver board.
  2. Desolder the white feeder relay, clean pads, and solder an identical new relay.
  3. Reinstall the board, restore power, and test the feeder output. A successful swap restored operation in the forum case. [Elektroda, jurek54, post #16689643]

I’m not confident opening the driver—should I attempt this repair?

If you’re unsure where the relay is or how to test it, seek a qualified technician. Disassembly and board-level work require skill and tools to avoid further damage. Safety and correct diagnosis come first. [Elektroda, Magister_123, post #16685993]

What tools do I need to diagnose or replace the relay?

You’ll need a multimeter, a soldering iron, solder, and a desoldering tool or braid. These allow you to test coil voltage, remove the faulty relay, and install the new part cleanly. Good lighting and magnification help. [Elektroda, Magister_123, post #16686327]

Is the relay always the culprit, or could it be something else?

Other faults can mimic relay failure. The thread notes cold solder joints or a damaged microcontroller as possibilities. “It may well be cold solder or a damaged microprocessor.” If relay tests pass, inspect solder and control signals. [Elektroda, Magister_123, post #16686327]

Why does the feeder work on a fan port but not on its own port?

That points to a problem specific to the feeder channel, not the motor. The working fan port proves the load and supply are okay, implicating the feeder relay or its drive path. Use a relay swap to confirm. [Elektroda, raf2, post #16685658]

Where is the feeder relay on the board?

It’s the white relay on the driver PCB. Users identified it as the feeder relay during troubleshooting. Look for discoloration or soot near that component, which can indicate contact wear. [Elektroda, jurek54, post #16689643]

What was the confirmed fix in this specific case?

Replacing the white feeder relay solved the issue. The original poster confirmed the repair after installation, closing the loop on diagnosis and solution. This validates the relay-focused approach. [Elektroda, raf2, post #16694690]

Any edge cases I should watch for after swapping relays?

If the problem persists even after swapping known-good relays, suspect a control-side fault. That includes cold solder joints on the relay drive or a damaged microcontroller output. Proceed with signal tracing. [Elektroda, Magister_123, post #16686327]
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