anthonyhugo Posted May 17, 2023 Share Posted May 17, 2023 (edited) Hi guys Our 9 month old Deye inverter is struggling at times, it fails with error stating it can't see the batteries My installer/supplier informed me that there's a 2 month waiting list for repairs We can't afford to purchase a replacement and pair them at a later stage once this one is fixed The issue is intermittent Do you guys know if there's a way one can book a slot to have this inverter repaired? It seems counter intuitive for us to go without solar for 2 months while the inverter lies around waiting to be repaired Much appreciated Thanks Ant Edited May 19, 2023 by anthonyhugo Quote Link to comment Share on other sites More sharing options...
mzezman Posted May 17, 2023 Share Posted May 17, 2023 Which batteries do you have and how are they connected to the Inverter? Have you checked to ensure that all battery <> inverter connections are set properly and not loose? Including the fuses Have you shutdown the system and restarted it again following the correct process? When it happens - is this during loadshedding only or even outside of LS? Would there be a high load? anthonyhugo 1 Quote Link to comment Share on other sites More sharing options...
anthonyhugo Posted May 17, 2023 Author Share Posted May 17, 2023 (edited) Hello we have 4 x 5kWh Dyness batteries I checked all looks good but my installer will be coming to our house today to check as well, will revert with he's findings I checked continuity on the fuses between the inverter and batteries and they seem good The issue arises randomly in or out of LS Edited May 17, 2023 by anthonyhugo mzezman 1 Quote Link to comment Share on other sites More sharing options...
anthonyhugo Posted May 17, 2023 Author Share Posted May 17, 2023 Do you know if one can book a repair slot with Deye? Do they have a local repair shop or does the inverter need to be shipped? Quote Link to comment Share on other sites More sharing options...
Sc00bs Posted May 17, 2023 Share Posted May 17, 2023 (edited) hi @anthonyhugo What error code is the inverter reporting? You can check it on the "Device Info" menu screen Edited May 17, 2023 by Sc00bs anthonyhugo 1 Quote Link to comment Share on other sites More sharing options...
mzezman Posted May 17, 2023 Share Posted May 17, 2023 2 hours ago, anthonyhugo said: Do you know if one can book a repair slot with Deye? Do they have a local repair shop or does the inverter need to be shipped? As far as i know all Sunsynk + deyes go to the same repair workshop which is in randburg (i think)... anthonyhugo 1 Quote Link to comment Share on other sites More sharing options...
Jan.Nel Posted May 17, 2023 Share Posted May 17, 2023 (edited) @anthonyhugo - My Deye 5kW inverter was installed last week. Do you see the battery information on LCD screen for BMS? It could be issues with the CAN cables. Edited May 17, 2023 by Jan.Nel Mistake anthonyhugo 1 Quote Link to comment Share on other sites More sharing options...
Steve87 Posted May 17, 2023 Share Posted May 17, 2023 Hi @anthonyhugosend it to @BritishRacingGreen, he has the workshop repair manual & may be able to assist. He will receive an 8kW Deye soon from a client also to repair. He is your man... anthonyhugo 1 Quote Link to comment Share on other sites More sharing options...
anthonyhugo Posted May 19, 2023 Author Share Posted May 19, 2023 Hi all just to report back, all my issues seem to be sorted now and was as a result of a loose connection on the busbar between batteries and inverter! eish! We now double checked all connections and added new washers on both sides of the lugs to hopefully prevent this (I think they're called serrated star washers) My installer will have a stern talk to he's team, we're all human after all and mistakes happen, I'm just grateful this didn't cause a fire or damaged our equipment (it seems) Thanks Ant mzezman, Steve87, Jan.Nel and 1 other 4 Quote Link to comment Share on other sites More sharing options...
Scorp007 Posted May 19, 2023 Share Posted May 19, 2023 1 hour ago, anthonyhugo said: Hi all just to report back, all my issues seem to be sorted now and was as a result of a loose connection on the busbar between batteries and inverter! eish! We now double checked all connections and added new washers on both sides of the lugs to hopefully prevent this (I think they're called serrated star washers) My installer will have a stern talk to he's team, we're all human after all and mistakes happen, I'm just grateful this didn't cause a fire or damaged our equipment (it seems) Thanks Ant Good for you to have all issues sorted. Actually one should not have a washer between the contact of busbar/battery and the lug as the washer is not a good conductor of current and will lead to heat and another bad connection. anthonyhugo and zsde 2 Quote Link to comment Share on other sites More sharing options...
Steve87 Posted May 19, 2023 Share Posted May 19, 2023 Very good outcome here @anthonyhugo. Your attitude is spot on. You didn't get any damage and for that you are fortunate. The solar installation game is very technical & can at times be pressurised on a site. We are all human & being human comes with Errors and emotions & lots of good and bad things. Glad you got a favourable outcome. anthonyhugo 1 Quote Link to comment Share on other sites More sharing options...
anthonyhugo Posted May 19, 2023 Author Share Posted May 19, 2023 Thanks all and thanks Scorp007 I'll relay the info much appreciated! Quote Link to comment Share on other sites More sharing options...
JustinSchoeman Posted May 19, 2023 Share Posted May 19, 2023 3 hours ago, Superfly said: M6 bolts should be torqued to 7.2 Newtons per meter. M8 bolts should be torqued to 17 Newtons per meter. M10 bolts must receive 28 Newtons per meter of torque. M12 bolts should be torqued to 45 Newtons per meter, and M16 bolts should be tightened to 91 Newtons per meter Rather RTFM - torque value depend heavily on the material you are bolting into - there is no 'one size fits all' rule you can use. For inverters it is usually a fairly soft copper fitting, and generally requires lower torque than grade 4.8 fittings. My Deye manual specifies M10 with an absolute max of 24.5 N.m (yours may differ). Probably the most common repair Deye does in South Africa is replacing stripped terminals caused by installers who know better than the manual. Also primary current path is the clamping area between the lug and the bar - and this is based on copper to copper, with thin, clean tin plating on both surfaces. Never include a washer - especially not a steel washer, as it will result in long term corrosion and a fire risk. Remove the star washer and carefully dress any burrs caused by its use before refitting with only one lock washer on the outside, and the correct torque as specified in your manual. anthonyhugo 1 Quote Link to comment Share on other sites More sharing options...
JustinSchoeman Posted May 19, 2023 Share Posted May 19, 2023 16 minutes ago, Superfly said: What are you on about? We are talking busbars not terminals (which obviously has to be manual specific) - The Victron Lynx has M8 at minimum 14Nm - the guideline I gave is obviously upper limit to cover all. One does not have to be exact rather too tight than too loose. Oops - misread original post - thought it was the battery terminal. But the principle still holds. The torques you quoted are for through-bolted busses. Threaded busses as often used in solar installations will have lower, product specific, torque specifications. But the principal is still the same - never exceed the rated torque. Once you hit the plastic limits of the threads, you lose clamping force dramatically. Manufacturers specify maximum torque values for a reason. anthonyhugo 1 Quote Link to comment Share on other sites More sharing options...
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