SGS Posted December 17, 2020 Share Posted December 17, 2020 (edited) Noticed an issue with my M25, purchased sh through forum. Some background, using 5 channels in 5.1.4 setup. Front left to amp 1 Amp 2 not in use Rear left amp 3 Centre amp 4 Rear right amp 5 Amp 6 not in use Front right amp 7 After a while running, not loud Amp 1 led off Amp 2 led on Amp 3 led sometimes flashes on off Amp 4567 no issue No issue with sound, channel still audible Left side of amp is quite hot which covers 123 amps 4567 remain quite cool Haven't as yet found fans to come on, the are 3 at bottom in rear Thinking fans are not working, but why are left side amps hot and right are not? Thoughts? Edited December 17, 2020 by SGS Link to comment Share on other sites More sharing options...
SGS Posted December 17, 2020 Author Share Posted December 17, 2020 Seems it got worse, as in hotter. Then amp1 went red and no sound. I had it on its side to assess fans, they don't work. Link to comment Share on other sites More sharing options...
Lil Caesar Posted December 17, 2020 Share Posted December 17, 2020 Microprocessor issue or simple as a wire for thermal on one side is not picking up temp. Get it serviced before your fry it. Link to comment Share on other sites More sharing options...
SGS Posted December 17, 2020 Author Share Posted December 17, 2020 It's turned off now. I did try moving front left from amp1 to amp 2, banana plug came apart, wondered if that could be issue. But either way, no fans. Link to comment Share on other sites More sharing options...
SGS Posted December 18, 2020 Author Share Posted December 18, 2020 I messaged NAD Australia and did not get a response. Googled HiFi repair in Ballarat and found John Thomas Electrical. Their web page sounded promising including vintage HiFi. Called them and have dropped amp of to them. Guy I spoke to stated their repairer was an older gentleman and possibly the best in Victoria. Quite a claim, but I think they will certainly be able to assist with my M25. 1 Link to comment Share on other sites More sharing options...
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