Mensagem "k1-open" em inversor SunnyBoy

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Clbrito
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Mensagem "k1-open" em inversor SunnyBoy

Mensagem por Clbrito »

Alguém sabe a causa desse erro em inversores Sunnyboy?


joao-pt
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Re: Mensagem "k1-open" em inversor SunnyBoy

Mensagem por joao-pt »

Falha no teste do relay da rede.

Tenta isto, desligar da rede, desligar dos painéis, esperar um pouco até ficar tudo apagado, ligar aos painéis, ligar à rede, aguardar um pouco a ver se já não dá o erro.

Se não resultar, contacta o instalador/vendedor.
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nunomsmota
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Re: Mensagem "k1-open" em inversor SunnyBoy

Mensagem por nunomsmota »

Clbrito Escreveu: 19 out 2018, 10:31 Alguém sabe a causa desse erro em inversores Sunnyboy?
Significa que o Relé K1 não consegue ligação.
Segundo a minha experiência normalmente acontece após uma trovoada, se assim foi há que contactar o instalador/fabricante para proceder à reparação.

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Sunnyboy Inverter Error K1 Open

Sunnyboy inverter error k1 openIs your SMA Sunnyboy solar inverter showing an error K1 Open message? If so your solar power system isn’t working, so you’ve done the right thing by coming here and doing something about it.
Error K1 Open – What does it mean?

The Error K1 Open message on an SMA Sunnyboy inverter is referring to the grid relay inside the inverter, relay K1. When the inverter is off or there is no sunlight available it is completely normal for the K1 relay to be open, however when solar power is available the K1 relay will try to close so it can send power from the inverter into the grid. If the K1 relay isn’t closing when the sun is out your system won’t work and the inverter will throw this error. The Error K1 Open is an internal fault with your inverter.

“Error K1 Open” – How do you fix it?

SMA Sunnyboy solar inverters are generally very reliable, so hopefully you can get your inverter back in action. The first thing we recommend with an issue like this is to try a full reboot of your system by completing the following in order:

Turn OFF the solar supply main switch (or inverter AC isolator if present).
Turn OFF the PV array DC isolator.
Wait for the inverter screen to go completely blank and the red fault light to turn off.
Turn ON the PV array DC isolator.
Turn ON the solar supply main switch (or inverter AC isolator if present).
Wait a few minutes while the inverter boots back up.

If a reboot didn’t help…

If after rebooting the inverter you see the same error message, unfortunately, it sounds like you have a permanent error which is going to require professional help. The Error K1 Open fault will be covered under the SMA inverter warranty however if you are seeing this issue I’m guessing the inverter is outside the standard manufacturer 5 year warranty. The SMA Sunnyboy SB1100, SB1700 and SB25000 were manufactured more than 5 years ago now so it’s highly unlikely your warranty extended longer than that.

You can potentially have the internal issue with your inverter repaired however this will be at a substantial cost and still leave you with an inverter that isn’t covered by warranty. For this reason we highly recommend replacing the faulty inverter with a new quality unit backed by a new manufacturers warranty.
Nuno M.
Eng. Electrotécnico | T. 962 487 310
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