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Reviving this old thread. What are you guys using to clean your panels. I'm sure just water wont remove everything. Like with windows, rain gives them a flush, but doesn't clean them 100%. Mine is in such a position that I can access them by standing on a ladder, but will need something a bit longer than the normal mop length. Something like this maybe, just longer handle? Or like a squeegee you would use on windows, again just something with a 2m handle?

Any suggestions on where to start looking at BTC/Altcoin mining as you do using your excess solar? I take it you run it on some dedicated machine?

Yes

@WilcoThanks so much. Will keep it in mind.

Not at all, old hand in the business.

Wow this is an unfortunate situation, but finding a trustworthy installer who abides by all the rules at the right price is a nightmare. I used an installer who was/is still? a respected/suggested member here and although a great guy and have "resolved" all the issues I have noted, I feel this is not my job to inspect the install and get a degree in the regulations and SANS docs just to make sure everything was done correctly. Some things that were surprising: 1) No DC isolator on batteries. This was resolved. The actual switches on the batteries would have been sufficient apparently. 2) No earthing on batteries. Apparently not an issue in such a small install (3 x 2,4kw Dyness) 3) No earthing/grounding of panels. After inquiring I was told that it can be done, but likely to give me false trips and hassles. Also that when going to SunSynk for instance you actually shouldn't earth the PV. Didn't make sense to me at all, but just didn't want to say OK go ahead and then any issue after that is my problem because I requested it. So no grounding of the panels. I am getting someone else to just come and review the system and fix the issues. 4) PV cables not in conduit. I am still trying to get a clear indication on the regulations on this. Seems it could be related to distances, but not 100% sure yet. 5) Inverter gave many issues and after a lot of troubleshooting with the manufacturer I engaged the installer & importer and although the inverter was replaced without any issues by the importer I did learn that #1 there is no option of getting refunded for the inverter and going for another brand #2 any issues with the inverter would be between myself and the importer and that would include costs for shipping the inverter back to the importer! These issues were within 6 months of install, so not even a year+ we talking about. One always now wonders what else is there that I am not even aware of and that's where you start losing trust in the system/industry.

Excellent, that's what I understood from Vassen's explanation on the coil and contacts, but just wanted to be 100% sure.

Thanks @Vassen Thanks for the explanation and clarification. Yes, as indicated that connection from Sonoff to COM at #2 in my diagram can be ignored. I will take the L from the Pump CB to feed the contact. Please just clarify which is the correct way around. OR 220v L to COM or to NO?

@Vassen Sorry, will try and clarify my understanding here. Current setup below. Please ignore the colours, my blue pen decided to die halfway. Also note I didn't draw in all the Neutrals, grounds, etc. These will remain as is. Main focus here is from the Pump CB to the Timer and then to the Pool Pump itself. Proposed future setup with Sonoff and Relay: So L from the Pump CB will now go to the Sonoff L and N from N Bar to N of Sonoff. Now the main question at #1 (in yellow) above is what is the polarity of the pins on the Relay where you indicated I should connect the Sonoff output to? Ignore my line at #2 (yellow) above. My question is where should the 220V Live come from to connect to the COM on the relay? Can I just take that from the output of the Pump CB as well? So from the L output of Pump CB, one to the L of Sonoff Input and one to the COM on relay? And lastly I understood that NO from relay to the Pool Pump Live input. Please let me know where I am going wrong? Thanks again!

Hi Joe That was still in the days of believing it can run successfully in Li mode. I can't even remember what the last straw for me was, but I just went back to USE mode and haven't touched Li mode again. I know I will regret it, but have started asking around again if there is any updated firmware out( Q4 2020+ ) for the SPF5000TL yet and if anyone is running it without any issues. What issues are you having in USE mode?

Thanks again for this. I would just like to confirm the following: I should be able to take the input to the current timer and route it to the Sonoff and then from the sonoff to the terminals as indicated above on the relay? What is the polarity of the terminals on the relay or does it not matter? I can then take the output of the current timer to the COM and then the NO connected to the pump live. Will just check what the routing of Neutral is.

Hi, can you maybe elaborate on this? Power down the inverter? Process? or inverter + batteries? Process? It then keeps the settings? TIA

Soooo whats the latest version, patch, BMS version, etc everyone is on? What has been fixed? What is still an issue? This side my biggest issue is still the losing of data every once in a while. So no dataflow and datapoints on the app and website. Just fixes itself eventually hours later or unplug en reinsert the wifi dongle would help. Still also running in USE mode. I gave up on the Li mode

Thanks, that's much cheaper than the mantech ones. See they don't have stock in CPT, but will see if I can order with delivery online. Any chance you have a schematic of wiring this up to a pool pump/geyser with a sonoff basic?

Yeah, already have HA running so don't want to bother with something not compatible. Happy with the Sonoff and relay route.

Hi All I need some guidance please. I see guys making use of relays/contactors when setting up their geysers and pool pumps to make use of smart switches(Sonoff, etc). What does one need to look for when buying these? Would the below work for geyser/pool pump? 40A geyser(3kw soon to be 2kw) and 20/30A for pool pump(0.75kw)? https://www.mantech.co.za/ProductInfo.aspx?Item=99M500893 https://www.mantech.co.za/ProductInfo.aspx?Item=14M0935 https://mantech.co.za/ProductInfo.aspx?Item=14M3872 and then these 2 which also differ from one another... https://mantech.co.za/ProductInfo.aspx?Item=15M3465-X vs https://mantech.co.za/ProductInfo.aspx?Item=82M1467 TIA

Hi Mine went into that state due to a bricked COM board after applying a FW update supplied by Mahone. They sent me a new COM board, but the inverter was eventually replaced by the supplier after weeks of troubleshooting with Mahone and getting nowhere.

Well thats a good start already Yup happens to me every now and then as well. I have just accepted that fact that I need to remove the dongle, leave it for a minute and put it back and all is working fine again.

Thats great news. Does he understand english and the issue with the firmware?

How did you get past the "Send Start" ?

Nice, can you confirm which firmware it is that you are running now? which version was supplied to fix it?

Would also like to know this. Currently have a 3kw element and this is on the grid. Do have spare capacity so thinking of going this route as well and installing a 1,5kw or 1kw element with a breaker on the inverter circuit for utilizing the spare solar power.

storage<date today yyyymmdd> like storage20200914 or inverter20200914 or on the newer ones growatt20200914

Oh ok. That's the one you also mentioned earlier in this thread. Thought it might have been another newer one.

When is your geyser going on? What size element?