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

I have a look on 8 ICs , what are plying a role of control card. 

Hi

Have you solved this problem with error 06?

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.

Ok, I will test tomorrow, Thanks

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 January 27, 20224 yr 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?

Bought on ailexpress, the seller is not responsible...

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

Hello, this is a very easy fault. There are two 10 ohm resistors located near the igbt that are damaged. Replace them please.

Hello

Hi have the same error fault 06…can you tell me exactly where the resistors are located please ? And what does the Igbt mean ?

many thanks 

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 

 

Dear brother Mohammad Sharbo, i have tyhe same problem with my Inverter, can you please tell what you exactly did and fixed your. thank you in advance and Allah bless you.

 

Possibilities for solving cap faults