Sw 4024 not inverting from 115ah lead, passes ac from Honda eu2000i. Two weeks no power,off-grid 40 years

[Redwoodjungle]

Maybe put in off-grid inverters?
Two weeks sw4024 no power from batteries!?!
Came home off-grid turned on invert enable green light no humm of transformer. Eight seconds later red light on 2sec later off, 8 seconds later red on again. For two weeks. Batteries at 25.2v at 5am no loads ever. 30v -25.2 for last 5 years everyday. Outback 80a cc. Deep cycle fla 115ah. No smoke or smells ever very little use really ever. No help from schneider they told me to toss it and by another one. At a loss I like this inverter aside from its idle power consumption it's amazing. Bought it because it was supposed to be repairable in field and serviceable like outback 3600s are. They did just tell me on the phone that they don't touch them so they lied. Also said that you can't get parts another lie. Ugg. 1500$ brick ?!? Never really used it... Got 10 years out of an exeltech 1100, dang scheinder. I need my freezer and lights I need tools. I am about to get a spf 3000lt lvm es but it looks like china junk and no customer service phone number or address or anything that's worse. It seams cheap and looks cheap I need power now...new xw or fix sw or growatt lvm or lvm es. Why no transformer noise on Sw 4024? Why no power from dc to ac? Why won't it invert? Any advice greatly appreciated, thanks for your time and thoughts, have a great day.

 

[anadiner]

Maybe put in off-grid inverters?
Two weeks sw4024 no power from batteries!?!
Came home off-grid turned on invert enable green light no humm of transformer. Eight seconds later red light on 2sec later off, 8 seconds later red on again. For two weeks. Batteries at 25.2v at 5am no loads ever. 30v -25.2 for last 5 years everyday. Outback 80a cc. Deep cycle fla 115ah. No smoke or smells ever very little use really ever. No help from schneider they told me to toss it and by another one. At a loss I like this inverter aside from its idle power consumption it's amazing. Bought it because it was supposed to be repairable in field and serviceable like outback 3600s are. They did just tell me on the phone that they don't touch them so they lied. Also said that you can't get parts another lie. Ugg. 1500$ brick ?!? Never really used it... Got 10 years out of an exeltech 1100, dang scheinder. I need my freezer and lights I need tools. I am about to get a spf 3000lt lvm es but it looks like china junk and no customer service phone number or address or anything that's worse. It seams cheap and looks cheap I need power now...new xw or fix sw or growatt lvm or lvm es. Why no transformer noise on Sw 4024? Why no power from dc to ac? Why won't it invert? Any advice greatly appreciated, thanks for your time and thoughts, have a great day.

Just today, I ordered an AIMS converter charger ($264 Amazon) = means to charge my batt bank off generator during a no power crunch.

I did not go into ur system issues. Rather theres an idea for temp solution to buy u time to think (what im doing)

 

[Redwoodjungle]

The inverter charges batteries still. Just won't won't work in inverter mode, ie no 110v ac from battery bank. Pretty much junk if it won't make power from batteries. I have no grid and hate running a genset for daily living, gas is 5.10$ here right now...

 

[Bud Martin]

Two threads for the same unit?

Conext Sw 4024 fried?

Conext Sw 4024 no power. Off-grid, turned on invert enable has green light no humm of transformer. Eight seconds later red light on 2sec later off, 8 seconds later off. Batteries at 25.2v cold overnight. 30v -25.2 everyday. Outback 80a cc. Deep cycle fla 115ah. No smoke or smells little use...

diysolarforum.com

 

[Mcgivor]

Do you have a Combox or SCP to read the fault codes?

Try doing a cold reboot, disconnect PV then battery, wait 15 minutes connect battery first then PV, sometimes they get caught in some kind of logic loop, this will eliminate that as a cause.

 

[Redwoodjungle]

Do you have a Combox or SCP to read the fault codes?

Try doing a cold reboot, disconnect PV then battery, wait 15 minutes connect battery first then PV, sometimes they get caught in some kind of logic loop, this will eliminate that as a cause.

No com or scp. Tried cold reboot 14x... No power, no smoke.

 

[Redwoodjungle]

Anything? Anybody ever see an Sw with no humm? Have no power, need working inverter now, not smart enough. Ac passes from small genset. Won't switch to inverter, green enable on. Schneider says they don't service. Never had grid power, I'm crazy by default, no other power source. Do like Schneider but I don't like living in darkness with no food. Did the firmware get deleted or erased? Removed all ac out, no change. Tried different battery banks, different outback cc's, tried no cc. No smoke no changes. No power for house still makes me looney, no one knows what I'm even talking about since nobody works on solar in northern CA in my region. Gonna get a gw or xw if this persists, can't get anything done, this has ruined my ability to maybe function occasionally as a human being. Why can't I update firmware with usb or LAN. Why can't I get fault codes without buying more stuff for broken stuff that's not broken? This is a catch 22. Where is anybody with an scp? I have a hard time going to spend 250 on something that probably won't help get power to fridge!?

 

[Mcgivor]

Unfortunately without being able to gain insight with the devices needed, it's extremely difficult to diagnose the potential problems, it's approaching the system blind, it is unfortunate that there is no direct visual interface, To add insult to injury, the product is at it's end of support. Schneider support is, in general, low level for the DIY crowd, it's a corporate decision they made to favor registered installers.

That being said, their product is generally robust when the additional appendages are available to diagnose problems, see if you can find someone with a SCP, Combox or programming tool that you can borrow, if you are in Thailand I can help, but I think not.

 

[RCinFLA]

The inverter charges batteries still. Just won't won't work in inverter mode, ie no 110v ac from battery bank. Pretty much junk if it won't make power from batteries. I have no grid and hate running a genset for daily living, gas is 5.10$ here right now...

The inverter must be working and synchronize to AC input to charge battery. That is 99% of what needs to be working for AC output.

The difference between charging battery and putting out AC power is just a slight change in PWM control.

If battery is too low it might do something like this., or you set low battery cutoff voltage too high, or for some reason the inverter is reading battery voltage is low. Also a bad battery with high internal resistance would do this, or high resistance cable connection.

Running without an SCP is eventually going to get you as you are flying blind.

 

[Redwoodjungle]

Unfortunately without being able to gain insight with the devices needed, it's extremely difficult to diagnose the potential problems, it's approaching the system blind, it is unfortunate that there is no direct visual interface, To add insult to injury, the product is at it's end of support. Schneider support is, in general, low level for the DIY crowd, it's a corporate decision they made to favor registered installers.

That being said, their product is generally robust when the additional appendages are available to diagnose problems, see if you can find someone with a SCP, Combox or programming tool that you can borrow, if you are in Thailand I can help, but I think not.

Very well said! I am in direct agreement with everything you said, you know exactly what you're talking about. This is precisely the issues I face as an end user.

Also agree, looking for scp or options for weeks. I live in an area with nothing. Thank you for the offer, you're very kind. Really appreciate your response as you clearly know exactly what you are talking about. Thanks again.

 

[OffGridICF]

Try posting your question over at the solar-electric.com forum. There are a lot of Trace/Xantrex/Schneider people there (including some installers) and someone might be able to help you.

https://forum.solar-electric.com/categories/off-grid-solar-battery-systems

 

[Redwoodjungle]

The inverter must be working and synchronize to AC input to charge battery. That is 99% of what needs to be working for AC output.

The difference between charging battery and putting out AC power is just a slight change in PWM control.

Are you getting any error messages?

Is this a new Conext SW4024 or old Trace SW4024?

If battery is too low it might do something like this., or you set low battery cutoff voltage too high, or for some reason the inverter is reading battery voltage is low. Also a bad battery with high internal resistance would do this, or high resistance cable connection.

New conext Sw4024, very little use. 3w Led lights and led tv.

No scp so no message.

No power from batts, invert enable.

Start Honda 2000i inverter and power qualifies, reads 124-5v vac at all ac terminals in and out.

Ac light on, then ac light blinking, charging. No charge at batteries with multimeter...Then minutes later with genset still running, ac blinking charge, rough transformer noise begins and batteries begin to charge slowly. Shuts off charging randomly when transformer noise stops. Charging light continues to blink green.

 

[Redwoodjungle]

New conext Sw4024, very little use. 3w Led lights and led tv.

No scp so no message.

No power from batts, invert enable.

Start Honda 2000i inverter and power qualifies, reads 124-5v vac at all ac terminals in and out.

Ac light on, then ac light blinking, charging. No charge at batteries with multimeter...Then minutes later with genset still running, ac blinking charge, rough transformer noise begins and batteries begin to charge slowly. Shuts off charging randomly when transformer noise stops. Charging light continues to blink

The inverter must be working and synchronize to AC input to charge battery. That is 99% of what needs to be working for AC output.

The difference between charging battery and putting out AC power is just a slight change in PWM control.

If battery is too low it might do something like this., or you set low battery cutoff voltage too high, or for some reason the inverter is reading battery voltage is low. Also a bad battery with high internal resistance would do this, or high resistance cable connection.

Running without an SCP is eventually going to get you as you are flying blind.

Batteries at 25.2v cold.

Lbco never changed from default, no scp.

Will recheck, re disconnect, reclean reconnect the one 4/0 battery interconnect cable.

Just tested both (two) batteries with a new 12v 2000w harbor freight msw and both batteries start a 5.0cf chest freezer no hesitation... This will unbalance bank so no good but proves the lead is good. I have lead last over 10years out here if cared for...

 

[MichaelK]

Start Honda 2000i inverter and power qualifies, reads 124-5v vac at all ac terminals in and out.

Ac light on, then ac light blinking, charging. No charge at batteries with multimeter...Then minutes later with genset still running, ac blinking charge, rough transformer noise begins and batteries begin to charge slowly. Shuts off charging randomly when transformer noise stops. Charging light continues to blink green.

The default charge setting for the 4024 is 90A. Most likely what you are seeing here is that the inverter is sensing the generator input and is trying to qualify it. 90A X 25V charging = 2250W of power, most likely red-lining your little Honda. So, the inverter senses power, tries to engage the charger, the generator gets overloaded, and then the inverter drops the dirty generator power.

The default charging rate is adjusted from the SCP, so like it or not, you need to have one. I knew this even before I bought my XW, and SW inverters. You should have too! This is what happens when you go cheap.

 

[Horsefly]

Where are you? Why is it so hard to get an SCP? A quick Google finds lots of them on the Internet for between $200 and $300.

I've had a SW4024 running fine for a bit over 4 years.

 

[RCinFLA]

I never understood why manufacturer sets default charging current so high. That is not usually the first thing a new user thinks about when trying out their new inverter for the first time.

 

[Horsefly]

Schneider targets their products for professional installers, not DIY or hobby folks. Although I think their products are pretty solid, they are very slow to update stuff, and it isn't consumer friendly. The high charging current is an example. The pros probably get trained - or learn after a few installs - of what to change immediately on install. On the other hand, without an SCP (or Gateway) lots of things are hard to set-up on Schneider and problems are hard to diagnose.

 

[Redwoodjungle]

The default charge setting for the 4024 is 90A. Most likely what you are seeing here is that the inverter is sensing the generator input and is trying to qualify it. 90A X 25V charging = 2250W of power, most likely red-lining your little Honda. So, the inverter senses power, tries to engage the charger, the generator gets overloaded, and then the inverter drops the dirty generator power.

The default charging rate is adjusted from the SCP, so like it or not, you need to have one. I knew this even before I bought my XW, and SW inverters. You should have too! This is what happens when you go cheap.

Not what is happening. Honda does not redline it idles up slightly. Works great for years. Qualifies power in 10 seconds every time for years. Never redlines, batteries are charged already, 25.2 cold, do you know anything about lead acid?!? You are wrong in your assumptions. No revving of motor no gen overload, no red light on genset. No dirty power ever. 124.8v constantly all the time, @ all terminals on Sw. Have matching genset same output.

Knew this when I bought it, worked perfectly for years, battery bank is small charge from inverter is small. Never need to use it but works great.

You are foolish to assume what you don't know. Genset has nothing to do with anything I'm even having a problem with!!!?!

Did I say it was redlining, NO... You call me cheap and you don't even know anything or u can't read or run on lithium. Grow up and be nice or go home to your momma. I've been doing this my whole life and you are a troll. Have a bad day, good bye, you are not helpful and wasting everyone's time who might want to learn from this situation which is why we are all here to help each other and learn and be safe! Grow up!

 

[Redwoodjungle]

I never understood why manufacturer sets default charging current so high. That is not usually the first thing a new user thinks about when trying out their new inverter for the first time.

I'm not a new user charging works great for years. Charging is not the thread. This problem is my inverter won't make power from dc with full battery voltage...stay on topic please

 

[RCinFLA]

A 115 ah lead acid battery will quickly go pop if pushed very long with 90 amp charge.