Re: [RE-wrenches] Sunny boy 1800

2011-04-07 Thread David Katz
Jesse, Here is one more thing to look at. I have 3 SMA 1800 W inverters on my house and had a very similar problem when I installed them. They are very sensitive to AC voltage. Mine would turn off at 128 VAC. My utility voltage is 125 per leg and because of voltage "drop" in a log run of w

Re: [RE-wrenches] Sunny boy 1800

2011-04-06 Thread Christopher Warfel
I agree this is the place to start. Can you get the subarray/array configuration? It will either confirm or eliminate that the configuration is the problem.Chris --- Original Message --- On 4/6/2011 11:55 PM August Goers wrote:Jesse -Did you happen to measure the array voltage when the pro

Re: [RE-wrenches] Sunny boy 1800

2011-04-06 Thread August Goers
Jesse - Did you happen to measure the array voltage when the problem was occurring? I ran into a sort of similar issue to this where the string voltage was just a little too low and once the panels warmed up they would drop out of MPP range. Just a thought. Any idea what the string configuration i

Re: [RE-wrenches] Sunny boy 1800

2011-04-06 Thread Steve Jefferson
] Sunny boy 1800 Wrenches, I've been working on a sunny boy 1800 with some problems. There is no manual and SMA website does not have it available. I need to watch the lights on the inverter to find the problem, but I'm not there now and I can't get this off my mind, so I will a

[RE-wrenches] Sunny boy 1800

2011-04-06 Thread Jesse Dahl
Wrenches, I've been working on a sunny boy 1800 with some problems. There is no manual and SMA website does not have it available. I need to watch the lights on the inverter to find the problem, but I'm not there now and I can't get this off my mind, so I will ask the esteemed members of this