[RE-wrenches] Fronius IG4000 problem

[Larry Crutcher, Starlight Solar]

William,

100% of what quantity? Are there any special conditions that may have  
contributed? Were they minor problems?

Larry

On Apr 18, 2009, at 2:04 PM, William Miller wrote:

> Larry:
>
> We have had an almost 100% failure rate for Fronius inverters.  This  
> is including replacing many of them multiple times.  We are about  
> ready to replace 6 LV4550s with 3 Plus 10,000s. I will let you know  
> how it works out, but we are very underwhelmed.
>
> William
>
>
>
>
> At 12:12 PM 4/18/2009, you wrote:
>> Wrenches,
>>
>> A Fronius IG 4000 is doing some weird cycling. Every 45 seconds the  
>> voltage pops up to Voc and drops back to Vmp immediately followed  
>> by a downward ramp of voltage and corresponding rise in current.  
>> This repeats continuously. PV array Vsc is constant and all strings  
>> are +/- 1 volt DC. I spoke with Dan at Fronius and they are working  
>> on it. BTW, very helpful and immediate response from Fronius.
>>
>> Has anyone else seen this occur? This is the second problem with  
>> this inverter so I am wondering how Fronius is holding up for others.
>>
>> Kindest Regards,
>>
>> Larry Crutcher
>> Starlight Solar
>> (928) 941-1660
>> Renewable Energy Products, Service and Installation
>>
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>>
>>
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> Please note new e-mail address and domain:
>
> William Miller
> Miller Solar
> Voice :805-438-5600     Fax: 805-438-4607
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