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Hi

I trying to repair inverter 3k shows error code 06 

I checked all transistors in section and out section with drivers all parts is ok.

I checked most of parts in main board i didn't see any abnormal parts

Any suggestions

Thanks in advance.

I attached pictures board

IMG-20190320-WA0003.jpg

IMG-20190320-WA0002.jpg

IMG-20190320-WA0001.jpg

  • 2 years later...
  • 3 months later...

Fault code 06 for 1-3 kVA models is "output voltage abnormal". So as Glodi says above, check the 8 chips near the processor, especially the TL074 op-amps, and surrounding parts. Some of those parts will be further away: strings of 3-4 resistors in series, near the Line and Neutral outputs.

I replaced all 8 ICs, it still displays error 06. The voltage on AC out reaches 150V and stops...

This is a new inverter, only turned on once is some factory defect

Edited by mototest

19 hours ago, mototest said:

This is a new inverter, only turned on once is some factory defect

I have to wonder then why you're doing board level repairs, and not taking it back under warranty?

One clue might be the 6 automotive-looking fuses in parallel near the battery positive terminal. That looks clone-ish to me. Perhaps the seller doesn't offer a proper warranty or other support?

  • 1 year later...
  • 8 months later...
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  • 7 months later...
On 2023/03/31 at 11:18 PM, cross wired said:

Hi. Did you manage to get the inverter to work. If so, what was the fault?

Just change all the six capacitors of 47uf 50v around the microprocessor 

 

  • 3 weeks later...
  • 4 weeks later...

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