[RE-wrenches] PV/Charge Controller Troubleshoot Help
Jay
jay.peltz at gmail.com
Tue Apr 23 11:43:27 PDT 2024
No error message for CC fan
The fan should cycle from battery power off start up.
I e never seen a CC produce zero watts. Reduced yes
While the fan might be broken I don’t think that explains the issue.
> On Apr 23, 2024, at 11:36 AM, William Miller via RE-wrenches <re-wrenches at lists.re-wrenches.org> wrote:
>
> If the fan fails would there be an error message? As always, I looked this
> up before posting. The manual is not clear on the matter.
>
> William
>
> Miller Solar
> 17395 Oak Road, Atascadero, CA 93422
> 805-438-5600
> www.millersolar.com
> CA Lic. 773985
>
>
> -----Original Message-----
> From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On
> Behalf Of MDElectricSolar via RE-wrenches
> Sent: Tuesday, April 23, 2024 6:58 AM
> To: RE-wrenches
> Cc: MDElectricSolar
> Subject: Re: [RE-wrenches] PV/Charge Controller Troubleshoot Help
>
> It may be the fan. I had an FM 80 where the fan went bad that caused very
> limited solar production throughout the day.
>
> Michael D Nelson
> MD Electric & Solar, Inc.
> 707-684-0064 mobile
> 707-884-1862 office
> www.mdelectricsolar.com
> www.facebook.com/mdelectricandsolar
>
>
>> On Apr 23, 2024, at 6:54 AM, jay via RE-wrenches
>> <re-wrenches at lists.re-wrenches.org> wrote:
>>
>> HI Jim,
>>
>> The CC is sure suspect.
>> You didn’t mention what the battery voltage is.
>> Those CC have a hard PV watt input limit.
>>
>> You can try and set it back to factory default and then reprogram,
>> sometimes that works.
>>
>> I don’t use the FM-60, but always the FM-80 because of the fan
>> replacement. the 80 takes 3 minutes, the 60 takes 2 hours.
>>
>> jay
>>
>>> On Apr 23, 2024, at 6:00 AM, Jim Gowdy via RE-wrenches
>>> <re-wrenches at lists.re-wrenches.org> wrote:
>>>
>>> I'm troubleshooting the solar aspect of a small offgrid 120v outback
>>> system and need some opinions. The customer was complaining that the
>>> generator was running too much so I went out to their property and
>>> investigated. The solar array consists of 16 total panels (4 strings of
>>> 4). At the combiner box, I took the voltage and amperage reading of each
>>> string and found the following......BREAKER 1 (85VDC/8.87A) BREAKER 2
>>> (84.5VDC/8.9A) BREAKER 3 (.03VDC/0A) BREAKER 4(85VDC/8.89A). Breaker 3
>>> string was not producing and so I did a fix and then read
>>> (87.1VDC/8.43A). After reviewing the online monitor since that fix from
>>> a few days prior I'm realizing that the first day after had 4.5KWH
>>> production, second day had 0.7KWH production, and yesterday had 0.3KWH
>>> production.....sun has been out without clouds. The 60A Outback charge
>>> controller shows there is PV voltage, but noticed it was in "silent mode"
>>> a good amount of time. Charge controller is old, but all the other
>>> equipment was updated about a year and a half ago. I was wondering if
>>> there is a way to diagnose if the charge controller is bad without just
>>> replacing it and what does it mean when it's in "silent mode". Another
>>> side note is that their generator threw an AGS fault code on the MATE3
>>> controller and found that the generator has problems so I ended up
>>> turning from "auto" to "off"
>>> --
>>> Jim with Gowdy Electric
>>> Cambria, Ca 93428
>>> business 805 927 2630
>>> cell 805 975 5279
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