kingchris Posted August 17, 2017 Share Posted August 17, 2017 Anybody know where I can obtain a replacement cooling fan for the Axpert 5Kva Inverter Quote Link to comment Share on other sites More sharing options...
___ Posted August 17, 2017 Share Posted August 17, 2017 RS Components? :-) Quote Link to comment Share on other sites More sharing options...
Coulomb Posted August 19, 2017 Share Posted August 19, 2017 (edited) Be aware that the Axperts are picky about speed sensing. A friend had some quiet fans in one, and there would be occasional locked fan errors. Enough to be a real nuisance, and the fan error could mask a more serious error. It may be possible to modify the sense circuit, but it was not worth the trouble, and a firmware upgrade basically fixed the noisy fans anyway. So they were swapped back to the original Adda fans. See http://forums.aeva.asn.au/viewtopic.php?title=pip4048ms-inverter&p=62186&t=4332#p62186 for details. Edited August 19, 2017 by Coulomb Added AEVA link Quote Link to comment Share on other sites More sharing options...
kingchris Posted August 20, 2017 Author Share Posted August 20, 2017 Anybody know where to get original (Adda ) fans then ? Surely some of the importers have spares of these. Had huge problem getting hold of the parallel cards recently. Quote Link to comment Share on other sites More sharing options...
Chris Hobson Posted August 20, 2017 Share Posted August 20, 2017 12 minutes ago, kingchris said: Anybody know where to get original (Adda ) fans then ? Surely some of the importers have spares of these. Had huge problem getting hold of the parallel cards recently. http://www.ebay.com/itm/1-PCS-ADDA-Fan-AD0812VB-A7BGP-80-80-25mm-DC-12V-0-65A-4-Pin-/252397830057?hash=item3ac4153fa9:g:JYcAAOSwciVXQFv1 This fan is a very close match to the original. I have 2 original fans but I must just confirm that we are discarding the machine before I part with them. Quote Link to comment Share on other sites More sharing options...
Martino Posted December 8, 2017 Share Posted December 8, 2017 I have seen DELTA has fans similar to the ADDA ones; the closest is 0.8A and 4-wire Chris Hobson 1 Quote Link to comment Share on other sites More sharing options...
TenaciousTech Posted June 16, 2019 Share Posted June 16, 2019 So to recap on this.... If running unmodified original firmware 52.30 with Noctua fans, the issues as outlined above with low fan speeds and how the inverter reads the speeds shouldnt be an issue? Looking at the Noctua NF-A8 PWM fans, have always loved noctua fans for quietness and reliability. Quote Link to comment Share on other sites More sharing options...
Coulomb Posted June 16, 2019 Share Posted June 16, 2019 No, sadly it seems that you will eventually get hit with locked fan warnings, which will mask all but one real warning, should one ever come up. See https://forums.aeva.asn.au/viewtopic.php?p=62186#p62186 Quote Link to comment Share on other sites More sharing options...
Gabriël Posted June 16, 2019 Share Posted June 16, 2019 primitive yet efficient, cheap no-name brand pc fans have been running continuously for 13+ months sucking air on both sides of the inverter and dropping average temp by 10 degrees C ... KISS Dean Lennox and Jaxone 2 Quote Link to comment Share on other sites More sharing options...
ebrsa Posted June 17, 2019 Share Posted June 17, 2019 @Gabriël I also had a larger external fan cooling my Axperts. One of them failed and repair technician of supplier said it was caused by condensation. On advice from @Mike I removed it. Mike overcame the condensation problem at clients with different make of inverter by building a box with smaller vent holes to enclose inverter. Seems us folks on the coast have to take the condensation problem seriously and keep our inverters fairly warm if not hot. Gabriël 1 Quote Link to comment Share on other sites More sharing options...
Gabriël Posted June 17, 2019 Share Posted June 17, 2019 1 hour ago, ebrsa said: caused by condensation although we are 15km from the coast and have a high humidity as well as the occasional condensation on our ibr roof i have never noticed such on any metal surface inside the house. the inside temperature of the inverter hardly ever drops to below 30C when working - neither have i seen tokens of condensation [rust] on the inside of my pc inside the house where the inside temperature of the pc is lower than that of my inverter and it is running 24/7 with fans at full speed. now what i will concede is that if there is dust buildup and the dust were to get damp due to air humidity that will definitely cause problems in the long run, like for instance in a hair dryer or on the wire enclosure of a cooling fan.... but then again everything seems to perish faster on the coast - i heard one day that in swakopmund the fridge compressor-mountings would rust away long before the compressor would tend to cease - bottom line, i will take my chances... Quote Link to comment Share on other sites More sharing options...
Dean Lennox Posted June 23, 2022 Share Posted June 23, 2022 Quote On 2019/06/16 at 9:22 AM, Gabriël said: primitive yet efficient, cheap no-name brand pc fans have been running continuously for 13+ months sucking air on both sides of the inverter and dropping average temp by 10 degrees C ... KISS Just had a fan go on my Axpert 1KW and did the same thing as a kiss fix. Graph before 06h00 is no load with remaining fan running, after 08h30 is with load and the addition of a single pc case fan. Quote Link to comment Share on other sites More sharing options...
Namreh Posted April 17 Share Posted April 17 Hi, I am also looking for replacement fans for axpert 5kva inverter. It is a 12 volt 0.3 amp 4 wire fan 80x80mm Thanks Quote Link to comment Share on other sites More sharing options...
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