Could be a couple of things... Yes, this sounds like an SW4048... Not a 2548. A 2548 is black only weighs about 60 pounds and doesn't do auto gen start or gen support.
Is this a white unit with a green stripe that 2.5 feet long and about 20 inches tall? Right? Does it have a Red or black handled breaker on the right hand side? If so then it's a 5548 not a 4048, that really the only difference between the two other than firmware code. Easy Fix... I would check is the what mode the inverter is in. On the main screen it should be set to on... If it's set to search then it will only turn on when it sees the "right" amount of power. If in search mode move the cursor to under the on mode, or adjust the search mode sensitivity lower. Hard Fix... It could be a dead or dying relay with bad contacts. If it's this than I only know of a couple of places you can get it fixed. Off the top of my head, Tekris Power Electronics in New Jersey, or Inverter Sales and Service from Tennessee. Hope this helps. Steve Higgins Technical Services Manager M: +1.206.790.5840 F: +1.902.597.8447 Surrette Battery Company Exclusive manufacturer of [cid:rolls959cd7]<http://www.rollsbattery.com> From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Allan Sindelar Sent: Thursday, October 17, 2013 10:36 AM To: RE-wrenches Subject: Re: [RE-wrenches] Trace 2548 intermittent power problem Eric, A Trace 2548 with automatic generator start? I don't believe there ever was such a thing. I suspect that you're referring to either a SW4048 or SW5548. If so, your first step is to check the error codes, some of which are found in Menu Heading 2 (for generator-related issues) and the rest in Heading 5. Any "Yes" message as you scroll through them is a good hint. This inverter is at least 13 years in service, likely more. Sounds like a pre-GTI Y2K system. The units are remarkably robust and reliable, but it may well have a glitch in the firmware or voltage/frequency sensors. The extra inverter is your ace in the hole, once you determine what the issue is. Allan Allan Sindelar al...@positiveenergysolar.com<mailto:al...@positiveenergysolar.com> NABCEP Certified PV Installation Professional NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Founder, Positive Energy, Inc. A Certified B CorporationTM 3209 Richards Lane Santa Fe, New Mexico 87507 505 424-1112 office 780-2738 cell www.positiveenergysolar.com<http://www.positiveenergysolar.com/> On 10/17/2013 10:41 AM, SunHarvest wrote: I have encountered a Trace 2548 in seemingly good working condition. I was called out to troubleshoot a Grid-tied, battery back-up system with the following problem: - Upon loss of grid power there is about a 5 second lapse (no power to house) before the BB system engages. Power to the critical loads panel from the Trace is restored after the 5 second lapse. - After another 5 seconds the Trace will disconnect power to the loads. This on-off cycle continues until grid power is restored. After checking voltage & S.G. values, I determined that the 11 year old batteries needed to be replaced and I assumed this was the cause of the Trace on-off cycling. I also found that half of his PV array had bad BP modules. BP replaced all of the modules under somewhat of a warranty. So, new modules, new batteries, and a new Outback FM60 charge controller. After all upgrades I ran through a simulated power outage again and the intermittent power problem persists! He also has gen support enabled - connection to an Onan "RV Genset BGE NHE (??) - and when I start the genny from the inverter, by selecting "On" not "Auto", the genset fires right up but only stays on for about 30 seconds before it too shuts off and enters a cycling between auto-starting from the inverter and shutting down. This behavior is beyond me. So, I'm seeking help from the pros. Anyone know what's going on here? The customer has another Trace 2548, unused, sitting in a box. So, if I needed to I could swap out the inverter and see if that makes a difference...? Eric SunHarvest (530)798-3738 _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org<mailto:RE-wrenches@lists.re-wrenches.org> Change email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm<http://www.re-wrenches.org/etiquette.htm> Check out participant bios: www.members.re-wrenches.org<http://www.members.re-wrenches.org> This email and its attachments have been scanned by iConnection E-Mail Firewall for viruses, spam, and malicious content. The information transmitted in this email is intended only for the entity or person to which it is addressed and may contain confidential/privileged material. If you received this in error, please contact the sender and delete the material from any computer. 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