HELP - No Electricity

[Two on Tour]

I’ve just tried the circuit breaker but still nothing.
The batteries are now at 32%

Have you tried jump-starting the BMS to wake it up yet, as normally a BMS will not start up by itself from being asleep ?

 

[CutThroatJake]

Have you tried jump-starting the BMS to wake it up yet, as normally a BMS will not start up by itself from being asleep ?

How do I do that?

 

[Two on Tour]

How do I do that?

Did you check out any of the videos on Youtube as I suggested ?

 

[headlight]

CutThroatJake so the battery is accepting charge OK but not supplying any power ?
Sounds like the BMS has turned off discharge when the voltage got low to protect the battery from over discharge.
You will need to get into the app settings to turn it on.
You said Vanbitz fitted it ?
I would ring Vanbitz and they will explain what you have to do.

 

[MichaelT]

I’ve just checked the 50A fuse and it bleeped so I assume that’s good.

When you say bleeped do you mean you were testing continuity? If so then yes means it's working.

Have you got 230v working?

Does the Roamer battery have a setting to allow charge and discharge like the Fogstar ones or a switch like the older KS ones that needs to be turned on after the BMS shutdown?

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[Pausim]

If the battery is charging then it looks like the BMS has reset already. Perhaps the panel/EBL need resetting.

 

[MichaelT]

When you say bleeped do you mean you were testing continuity? If so then yes means it's working.

Have you got 230v working?

Does the Roamer battery have a setting to allow charge and discharge like the Fogstar ones or a switch like the older KS ones that needs to be turned on after the BMS shutdown?

Looking at thr Roamer web site the App has a setting to turn discharging on and off is yours on?

Roamer App Guide

Roamer SMART4, XTREME and HOME - the next generation in 12v 24V and 48V LiFePO4 lithium leisure batteries for campervans, motorhomes and boats. From 100Ah to 460Ah capacity with Bluetooth BMS, Victron GX integration, Active Balancing and low temperature charge protection. 5 Star UK support, 10...

roamer.com

 

[autorouter]

My HYMER control panel is flashing red where you check the state of charge.

I wouldn't be too worried about that. The Hymer SOC indicator is probably set up for lead-acid batteries. If the nominal battery capacity is entered as say 200Ah, then that is taken as 100%. But the '0%' level is set at 20% of that, ie 40Ah. This is presumably so that the user can use down to 0% on the indicator, but still have 20% left so the lead-acid batteries are not damaged.

Obviously that's not the best for lithium, which can go lower than 20%. best to ignore it and go by the battery app, or better still a battery monitor with a shunt, such as the Victron SmartShunt.

When you say the battery is at 32%, what indicator is showing that? Are you reading the Hymer display or something else?

Is everything working, 230V and 12V, apart from the Roamer battery app? If not, what exactly isn't working now?

 

[Pausim]

My Roamer battery has an on /off switch which glows when the battery is on, might be worth checking it is lit if yours has one. Also some EBLs have a Batterie Ein / Batterie Aus switch which has been known to play up, might be worth wiggling this off and on.

 

[CutThroatJake]

Did you check out any of the videos on Youtube as I suggested ?

I did. The ones I watched showed how to wake the BMS so it will accept a charge.

Would I be correct tin thinking as my batteries are charging then I don’t need to ‘jump start’ them?

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[CutThroatJake]

When you say bleeped do you mean you were testing continuity? If so then yes means it's working.

Have you got 230v working?

Does the Roamer battery have a setting to allow charge and discharge like the Fogstar ones or a switch like the older KS ones that needs to be turned on after the BMS shutdown?

No the 230v is still not working.

I’m not sure about the charge and discharge settings. The ones on the main screen say I could damage the batteries if I press them on load.

 

[CutThroatJake]

I wouldn't be too worried about that. The Hymer SOC indicator is probably set up for lead-acid batteries. If the nominal battery capacity is entered as say 200Ah, then that is taken as 100%. But the '0%' level is set at 20% of that, ie 40Ah. This is presumably so that the user can use down to 0% on the indicator, but still have 20% left so the lead-acid batteries are not damaged.

Obviously that's not the best for lithium, which can go lower than 20%. best to ignore it and go by the battery app, or better still a battery monitor with a shunt, such as the Victron SmartShunt.

When you say the battery is at 32%, what indicator is showing that? Are you reading the Hymer display or something else?

Is everything working, 230V and 12V, apart from the Roamer battery app? If not, what exactly isn't working now?

No I still have no 12v or 230v

I have a smart shunt which is now showing the batteries at 33% charged

 

[CutThroatJake]

My Roamer battery has an on /off switch which glows when the battery is on, might be worth checking it is lit if yours has one. Also some EBLs have a Batterie Ein / Batterie Aus switch which has been known to play up, might be worth wiggling this off and on.

I don’t think mine have a switch on the batteries. They are the Smart3 version.

I have tried switching the EB on & off. Should I jiggle it about for a while?

 

[autorouter]

Would I be correct tin thinking as my batteries are charging then I don’t need to ‘jump start’ them?

How do you know the batteries are charging? If it's the Hymer panel display, I wouldn't take that as an accurate percentage level by any means. Can you see the charging amps going into the battery, if so what amps is it? What is the Ah capacity of the battery?

 

[Lenny HB]

If the voltage has cut off the EBL will have turned on off, there is a small slide switch turn it off then back on.

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[peterc10]

Sounds like the Hymer EBL has switched itself off. Have you tried switching it back on manually? Different ways to do that but on my 2015 Hymer just push in the round knob on the panel.

 

[Lenny HB]

No I still have no 12v or 230v

I have a smart shunt which is now showing the batteries at 33% charged

I thought you only had the 12v not working the Multiplus needs 12v on it for the mains pass through to work and it also needs to be switched to either charger or inverter for the mains pass through to work.

 

[CutThroatJake]

How do you know the batteries are charging? If it's the Hymer panel display, I wouldn't take that as an accurate percentage level by any means. Can you see the charging amps going into the battery, if so what amps is it? What is the Ah capacity of the battery?

I have the cerbo screen which is connected to my smart shunt

 

[CutThroatJake]

If the voltage has cut off the EBL will have turned on off, there is a small slide switch turn it off then back on.

I have done that but it doesn’t appear to be doing anything. I assume that not a good thing?

 

[Lenny HB]

I have the cerbo screen which is connected to my smart shunt



View attachment 964040

Looks like it's charging OK.

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[autorouter]

I'm not sure I understand this. You have no 230V, but the battery is charging. Is it charging from solar, or is some of the 230V still working?

The 230V should work independently of the EBL. The only thing in the EBL that is 230V is the charger. The 230V trip switches should be in a separate box somewhere, probably near the mains inlet somewhere. Have the trip switches tripped? Is it just the RCD (the one with a 'Test' button) or did more than one of them trip?

 

[CutThroatJake]

Sounds like the Hymer EBL has switched itself off. Have you tried switching it back on manually? Different ways to do that but on my 2015 Hymer just push in the round knob on the panel.

How do I do that? I have switched the little switch on and off. Is there something else?

 

[CutThroatJake]

The 230V should work independently of the EBL. The only thing in the EBL that is 230V is the charger. The 230V trip switches should be in a separate box somewhere, probably near the mains inlet somewhere. Have the trip switches tripped? Is it just the RCD (the one with a 'Test' button) or did more than one of them trip?

I’m not sure. Are these the ones you mean?

 

[MichaelT]

Looks like it's charging OK.

Also shows some load on both 12 and 230 volts by the looks of it?

 

[CutThroatJake]

Also shows some load on both 12 and 230 volts by the looks of it?

I’m not sure what those could be as nothing is working

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[MichaelT]

I’m not sure what those could be as nothing is working

I guess 230v could be your charger?

 

[autorouter]

I’m not sure. Are these the ones you mean?

Yes, it looks like they are all on, ie none of them has tripped. Is that a photo of them now, or an old photo?

FYI, there's two separate boxes. The lower box has one RCD (with the blue 'Test' button) and two MCBs (no test button). The middle MCB has 'B16' on it, which means it's a 16A trip. The upper box has one RCD and one MCB. Unfortunately I can't quite read the other MCBs, but I can see they are double figures, so they are at least 10A.

About the two boxes, do you have an inverter fitted? Maybe the upper box is for the inverter output. Or it could just be an extra box because the lower box is too small.

 

[CutThroatJake]

Yes, it looks like they are all on, ie none of them has tripped. Is that a photo of them now, or an old photo?

FYI, there's two separate boxes. The lower box has one RCD (with the blue 'Test' button) and two MCBs (no test button). The middle MCB has 'B16' on it, which means it's a 16A trip. The upper box has one RCD and one MCB. Unfortunately I can't quite read the other MCBs, but I can see they are double figures, so they are at least 10A.

The picture was take a few minutes ago

I just pressed the test button on the both. No change to our situation.

 

[MichaelT]

The picture was take a few minutes ago

I just pressed the test button on the both. No change to our situation.



View attachment 964045

View attachment 964046

When you pressed the test button did it trip out? If not there's no power to them so problem would be further upstream.

 

[CutThroatJake]

When you pressed the test button did it trip out? If not there's no power to them so problem would be further upstream.

Yes they did.

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