5048 Hybrid Inverter - Low AC output voltage repair

Roland W

Member
Joined
Oct 9, 2017
Messages
146
Hi everybody,

A few months ago, my PV18 - 5048 HM ( just one of the dozen 5048 Hybrid inverter clones) started to put out a 20-25V lower than set AC voltage, while the inverter was showing normal value and no fault.

Today I took the time to address the problem and started with a reboot of the device, after which the inverter did not restart anymore at all!

So it was time to open the machine up after it was running for 4 years without a break.

Here is what I have found:


Maybe it helps somebody in a similar situation one day, as this type inverters are out in the wild by the thousands. But this case actually is just
showing, how good this relatively cheap devices actually are.

Thanks, Roland
 
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