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Good day, my PJ apparently got wet during the hurricane, I'm from P.R. when I went to turn it on it didn't turn on, I saw that the moffet on the negative side was burned, I put all new ones including the diver board, now I try to turn it on and it doesn't turn on, the moffet turn on the green lights, the diver board doesn't. check all the fuses and they are all good. which may be?
1 hour ago, Rafaelmedina23 said:my PJ apparently got wet during the hurricane, I'm from P.R.
Looking at the control board...are you sure the inverter didn't get submerged?
Replaced driver board looks good, but I'm seeing a lot of possible PCB damage on the control board. Plus the rather corroded screws by and on the driver board...
If the inverter was connected to battery power throughout the "getting wet" event (resulting in blown FETs when you got back to it), there's no telling how far the damage went.
With battery power on the inverter, what DC voltage do you measure from the battery negative to the heatsink on the FET on the control board?
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Should be DC battery voltage on the heatsink.
You can also check for DC voltage from battery negative to the middle wire going to the power switch. Should be battery voltage there as well.
I found the problem, it was a broken cable. thank you very much for your help.
Does it power up/run after fixing the wire?
yes, it works perfect, I had to lower the voltage knob because it marked 160v and I took it to 120v which is what we use in Puerto Rico.
once again it burns the mosfets on the same side, (+) I don't know what happened, it was working fine, I will no longer invest in this type of inverter, I have had experience with 2 of them and they can never be fixed. Thanks for everything
(+) I don't know what happened, it was working fine
Look like a rev 10.3 control board and it will blow up the FETs on one side . Only the rev 11.3 control board is available from Powerjack and 95 dollars . You must also get a complete rev 11.3 main board with cap and mosboard and matching cable and connector about 190 dollars . I done this and rev 11.3 will shut done before blow up the FETs .
Sean latest youtube say he has a lot of older PJ inverters and parts so contact him . Warning that all the older PJ inverter will cause you to say I don't know what happened, it was working fine .
2 hours ago, Rafaelmedina23 said:once again it burns the mosfets on the same side, (+) I don't know what happened, it was working fine, I will no longer invest in this type of inverter, I have had experience with 2 of them and they can never be fixed. Thanks for everything
What kind of loads were you running? (Just out of curiosity.)
Yeah, i'd like to hear how many watts you were pulling to blow the fets...
32 minutes ago, NotMario said:Yeah, i'd like to hear how many watts you were pulling to blow the fets...
Was w/o Watts, YouTube put my 24v from battery
33 minutes ago, Rafaelmedina23 said:Was w/o Watts, YouTube put my 24v from battery
Ah, OK...so after repairing the broken wire, you turned it on and the magic smoke came out again.
Worth noting that the control board looked damaged, so it's possible there was water damage to the control board circuitry as well.
6 hours ago, dickson said:Warning that all the older PJ inverter will cause you to say I don't know what happened, it was working fine .
My understanding was that some of the earlier models were reliable.
2 hours ago, RobertM said:My understanding was that some of the earlier models were reliable.
before changes were made to the copied original design, hehe 😉.
40 minutes ago, Sid Genetry Solar said:before changes were made to the copied original design, hehe 😉.
I'd actually like an old PJ 8000 that Genetry has previously reworked. I've read those were amazing. Ask Sean to pull one out of the pile.