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Inverter Croaked | 10 comments (10 topical)

Re: Inverter Croaked (3.00 / 0) (#2)
by dnix71 on Fri Jun 26, 2009 at 08:01:14 PM MST

Nice unit. £440 new, pure sine.

The pdf user manual can be downloaded here:

http://www.brightgreenenergy.co.uk/cotek_inverters.asp

Your unit has a serial port for 2-way communication.

It is also different from most inverters that size in that neutral and ground are bonded during operation. If it overloads during startup then the most likely cause is a shorted FET.

Re: Inverter Croaked (3.00 / 0) (#3)
by jimjjnn on Sat Jun 27, 2009 at 08:51:47 AM MST

According to User Manual, there is an internal fuze.I'd start there first. If fuze continues to blow, then check FETs
Denver,CO
[ Parent ]

Re: Inverter Croaked (3.00 / 0) (#8)
by soyer38301 on Sun Jun 28, 2009 at 02:33:42 PM MST

Jim,

Thanks. Actually there are 6 internal fuses -- all 10 amp where the line connects to the board. All were bad. I have them replaced which was a little bit of a pain.

All 6 fuses (automotive spade type) were not placed as easy removal. The spades of the fuses were soldered to the board! Rather than pull the board I soldered 16Ga wire to the new fuse spades and then to the remaining spades on the board. It is back up and operational! Nothing else in the inverter was damaged -- the fuses did their job.

I will continue to look into this to see if I can figure out what happened.

Thanks to all for the suggestions.

Scott O

[ Parent ]

Re: Inverter Croaked (3.00 / 0) (#10)
by ghurd on Sun Jun 28, 2009 at 02:58:42 PM MST

Sometimes fuses just fail.
I would just add 6 external automotive fuse holders.
Been there-done that. Looks funny. Works the same.
"No internal user serviceable parts" often means the fuses are blades soldered to the board.
I'd leave it like it is now, until you find it needs more work.
G-

[ Parent ]

Inverter Croaked | 10 comments (10 topical)

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