Fortress tells me they just released the latest firmware to deal with
half-wave loads. This version was put out for download a few days ago.
In my case, they say it "might" help (CFL to) LED retrofit lamps from
flickering when switching grid pass-thru to inverter AC. I am dubious. but
I've since read that some LED lamps do not employ full rectification, just
a single diode.
On Thu, Dec 19, 2024 at 8:54 AM Jay via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:
> Hi Howie
>
> That’s great info thanks.
>
> They never mentioned that to me.
> And I’ve not heard about an actual
> Hardware issue/fix.
>
> The latest firmware 1E1E is supposed to “fix” it. It also requires a
> separate firmware update for the display which you have to do in person,
> stupid.
>
> Jay
>
>
>
> On Dec 18, 2024, at 9:05 PM, Howie Michaelson via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>
> I installed a couple of EG4 18k inverters off grid this past spring, made
> by LuxPower as is the Envy. They look very similar both visually and
> programmatically. Withone install, there has been a steady problem of the
> inverter shutting off when the client uses a hair dryer. The other client
> has not reported any issues with the inverter cycling off. Tech Support's
> solution to this issue which they referred to as stemming from half-wave
> loads, was to run another load simultaneously which was supposed to help
> prevent the nuisance momentary shutdown, but according to the client, it
> hasn't helped. After bugging tech support for several months about this
> issue, they finally told me that there was a hardware design flaw that they
> were working on resolving and when they had it fixed, they would send out a
> replacement inverter. I asked if they would be replacing both inverters,
> but they said since one hasn't reported any issues, they would not be
> replacing that one. That was at least 2 months ago, and I have not heard
> anything since.
>
> Howie Michaelson
>
>
> On Wed, Dec 18, 2024 at 4:02 PM Jay via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>> I will add that I’ve heard privately off list that it’s actually smaller
>> loads that seem to be the issue.
>>
>> And larger 1500 watt electric heaters seem to work ok.
>>
>> I’m wondering if anyone else has come across this issue and I guess more
>> importantly is there a fix?
>>
>> Jay
>>
>> On Dec 18, 2024, at 1:52 PM, Jay wrote:
>>
>>
>> Here is what I understand 1/2 wave loads to be.
>>
>> As I understand it, Heater loads are the main issue.
>>
>> Toasters, toaster ovens, hair dryers, aquarium/terraium heaters etc.
>>
>> But if there are other things pls let us know
>>
>> Jay
>>
>> On Dec 18, 2024, at 1:34 PM, GLBCC via RE-wrenches <
>> re-wrenches@lists.re-wrenches.org> wrote:
>>
>>
>> What is a half wave load?
>>
>> On Dec 18, 2024 13:35, Jay via RE-wrenches <
>> re-wrenches@lists.re-wrenches.org> wrote:
>>
>> Hi all.
>>
>> I’ve recently been made aware that the fortress inverter isn’t too happy
>> with 1/2 wave loads.
>>
>> I’m wondering if this is an issue with the AIO or solark?
>>
>> Thanks in advance
>>
>> Jay
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