# Q&A and troubleshooting **URL:** https://community.victronenergy.com/c/products/4.md [Latest](https://community.victronenergy.com/latest.md) · [Categories](https://community.victronenergy.com/categories.md) · [Tags](https://community.victronenergy.com/tags.md) --- ## [Community Guidelines](https://community.victronenergy.com/t/community-guidelines/4)
**Author:** [@guystewart](https://community.victronenergy.com/u/guystewart)\ **Replies:** 0\ **Last updated:** [16 October 2026 09:30 UTC](https://community.victronenergy.com/t/community-guidelines/4 "2026-10-16T09:30:00Z")
Welcome to the Victron Community This is a place to ask questions, share ideas and learn from each other. Beginners, enthusiasts and experienced professionals are all welcome. Most answers come from volunteers, so pleas… --- ## [About the Q&A and troubleshooting category](https://community.victronenergy.com/t/about-the-q-a-and-troubleshooting-category/3)
**Author:** [@system](https://community.victronenergy.com/u/system)\ **Replies:** 0\ **Last updated:** [27 June 2024 10:58 UTC](https://community.victronenergy.com/t/about-the-q-a-and-troubleshooting-category/3 "2024-06-27T10:58:48Z")
Welcome to the Victron Community. Q&A is for discussion of Victron products by installers and users. Before posting, please review the community guidelines, product documentation and training. For DIY and Modifications,… --- ## [Generator autostart](https://community.victronenergy.com/t/generator-autostart/64398)
**Author:** [@IanE](https://community.victronenergy.com/u/IanE)\ **Replies:** 2\ **Last updated:** [26 October 2026 13:04 UTC](https://community.victronenergy.com/t/generator-autostart/64398 "2026-10-26T13:04:06Z")
hi, we have two separate systems where the generator autostart isnt working, including with genset. we dont have battery monitor or shunt. we have gone through all the manuals and datasheets to ensure that it has been in… --- ## [MPPT RS 100A Error 41 after Upgrade to v1.33](https://community.victronenergy.com/t/mppt-rs-100a-error-41-after-upgrade-to-v1-33/64332)
**Author:** [@TheStoney](https://community.victronenergy.com/u/TheStoney)\ **Replies:** 14\ **Last updated:** [26 October 2026 12:40 UTC](https://community.victronenergy.com/t/mppt-rs-100a-error-41-after-upgrade-to-v1-33/64332 "2026-10-26T12:40:31Z")
Hi, After upgrading to v1.33, Error 41 for the isolation resistance popped up. During operation, the resistance is at around 50-60Meg, when the unit is off, it drops to around 1Meg. The error happend twice during shutd… --- ## [An hour of data is missing](https://community.victronenergy.com/t/er-mist-een-uur-aan-data/64389)
**Author:** [@pcdewolff](https://community.victronenergy.com/u/pcdewolff)\ **Replies:** 2\ **Last updated:** [26 October 2026 11:15 UTC](https://community.victronenergy.com/t/er-mist-een-uur-aan-data/64389 "2026-10-26T11:15:49Z")
Am I the only one with this (possibly temporary) problem? A whole chunk of data is missing, but it looks like this is temporary because the data from an hour earlier seem to keep getting filled in. Was it because of the win… --- ## [Unable to log into VRM App on iPhone](https://community.victronenergy.com/t/unable-to-log-into-vrm-app-on-iphone/63885)
**Author:** [@kiwig](https://community.victronenergy.com/u/kiwig)\ **Replies:** 3\ **Last updated:** [26 October 2026 10:58 UTC](https://community.victronenergy.com/t/unable-to-log-into-vrm-app-on-iphone/63885 "2026-10-26T10:58:38Z")
Yesterday my VRM App on my iPhone 14 lost its login for no apparent reason. In attempting to log back in on my iPhone, I enter my email, a new window opens, a progress bar advances and disappears, but the page never loa… --- ## [Evcs/car stops charging](https://community.victronenergy.com/t/evcs-car-stops-charging/64368)
**Author:** [@jee](https://community.victronenergy.com/u/jee)\ **Replies:** 6\ **Last updated:** [26 October 2026 08:08 UTC](https://community.victronenergy.com/t/evcs-car-stops-charging/64368 "2026-10-26T08:08:52Z")
Hi all, I have an issue i don’t know how to tackle. The setup: 3 phase mp2 system, 80 kwh pylontech, cerbo, evcs (on mp2 out), etc… (all have the latest firmware) The battery system works flawless, no problems there. … --- ## [Enhancing DESS Cybersecurity: A Safer Alternative to Full VRM Remote Access](https://community.victronenergy.com/t/enhancing-dess-cybersecurity-a-safer-alternative-to-full-vrm-remote-access/47049)
**Author:** [@B51-technician](https://community.victronenergy.com/u/B51-technician)\ **Replies:** 6\ **Last updated:** [26 October 2026 07:26 UTC](https://community.victronenergy.com/t/enhancing-dess-cybersecurity-a-safer-alternative-to-full-vrm-remote-access/47049 "2026-10-26T07:26:53Z")
Good morning, I’d like to raise a concern regarding the cybersecurity of DESS systems, specifically the risk of potential hacker attacks via the internet. If I’ve misunderstood any existing configuration options, I apol… --- ## [The true purpose of the Lynx Class-T Power In](https://community.victronenergy.com/t/the-true-purpose-of-the-lynx-class-t-power-in/59317)
**Author:** [@mvs](https://community.victronenergy.com/u/mvs)\ **Replies:** 16\ **Last updated:** [25 October 2026 18:03 UTC](https://community.victronenergy.com/t/the-true-purpose-of-the-lynx-class-t-power-in/59317 "2026-10-25T18:03:21Z")
I have been finalizing the system design for a grid-tied project I am planning, and I am double-checking the battery protections. Most worldwide regulations (like ABYC) and European standards (where I am based) state tha… --- ## [EVCS say vehicle is charged but it isn't](https://community.victronenergy.com/t/evcs-say-vehicle-is-charged-but-it-isnt/52022)
**Author:** [@Juanito\_G](https://community.victronenergy.com/u/Juanito_G)\ **Replies:** 9\ **Last updated:** [25 October 2026 13:50 UTC](https://community.victronenergy.com/t/evcs-say-vehicle-is-charged-but-it-isnt/52022 "2026-10-25T13:50:35Z")
The vehicle is a Dacia Spring, the charger stops charging saying vehicle is charged, but vehicle is not charged. I cycle power and start charging again CP button is not available anymore while in the manual is stated th… --- ## [How to configure Cerbo GX for Octopus flux](https://community.victronenergy.com/t/how-to-configure-cerbo-gx-for-octopus-flux/63641)
**Author:** [@Bill\_Wilson](https://community.victronenergy.com/u/Bill_Wilson)\ **Replies:** 6\ **Last updated:** [25 October 2026 13:30 UTC](https://community.victronenergy.com/t/how-to-configure-cerbo-gx-for-octopus-flux/63641 "2026-10-25T13:30:35Z")
Is there a simple set of COMPLETE instructions to configure my CerboGX and Quattro 10 KW inverters to charge overnight between 2 and 5 (that bit Ive Done) but then export at the maximum between 4pm and 7pm in the evening… --- ## [EV Charging Station: different IP subnets](https://community.victronenergy.com/t/ev-charging-station-unterschiedliche-ip-basen/64366)
**Author:** [@Benzog](https://community.victronenergy.com/u/Benzog)\ **Replies:** 3\ **Last updated:** [25 October 2026 10:49 UTC](https://community.victronenergy.com/t/ev-charging-station-unterschiedliche-ip-basen/64366 "2026-10-25T10:49:31Z")
Hi everyone, I can't find anything in the docs about using different IP address ranges for the EVCS. I've got an Ethernet cable in the garage, but it seems there aren't any mesh-capable repeaters available for the Vodafone Station routers… --- ## [ESS phase balancing issue: buying and selling electricity at the same time](https://community.victronenergy.com/t/ess-phase-balancing-issue-buying-and-selling-electricity-at-the-same-time/63486)
**Author:** [@Slowmo](https://community.victronenergy.com/u/Slowmo)\ **Replies:** 6\ **Last updated:** [24 October 2026 18:17 UTC](https://community.victronenergy.com/t/ess-phase-balancing-issue-buying-and-selling-electricity-at-the-same-time/63486 "2026-10-24T18:17:24Z")
Today I discovered that when DESS schedules exporting excess solar energy to the grid instead of charging the batteries, it does so unevenly across the three phases. As a result, I end up buying electricity on one phase … --- ## [DESS makes illogical decisions](https://community.victronenergy.com/t/dess-neemt-onlogische-beslissingen/64313)
**Author:** [@Tom9](https://community.victronenergy.com/u/Tom9)\ **Replies:** 2\ **Last updated:** [24 October 2026 17:32 UTC](https://community.victronenergy.com/t/dess-neemt-onlogische-beslissingen/64313 "2026-10-24T17:32:10Z")
Hello, I'm new here. I have a system with 3x MultiPlus II 5000VA units and 32 kWh of battery capacity. I bought the setup from Helion Energie. My system has been running well since 4 October. Before that, I pro… --- ## [Future Victron EVCS V2H/V2G?](https://community.victronenergy.com/t/futur-evcs-victron-v2h-v2g/5740)
**Author:** [@maa](https://community.victronenergy.com/u/maa)\ **Replies:** 28\ **Last updated:** [24 October 2026 16:14 UTC](https://community.victronenergy.com/t/futur-evcs-victron-v2h-v2g/5740 "2026-10-24T16:14:09Z")
Hello, When can we expect a bidirectional Victron EVCS charger for V2H and/or V2G? Kind regards :slight\_smile: --- ## [EV Charging Station NS (single-phase): is a Type A RCD enough, or is Type B required?](https://community.victronenergy.com/t/ev-charging-station-ns-single-phase-is-a-type-a-rcd-enough-or-is-type-b-required/64321)
**Author:** [@fredmaret](https://community.victronenergy.com/u/fredmaret)\ **Replies:** 5\ **Last updated:** [24 October 2026 12:27 UTC](https://community.victronenergy.com/t/ev-charging-station-ns-single-phase-is-a-type-a-rcd-enough-or-is-type-b-required/64321 "2026-10-24T12:27:06Z")
Hello, I have installed a Victron EV Charging Station NS (EVC200300200, firmware v2.09) on a single-phase 230 V supply, upstream of a MultiPlus-II GX 48/6500 (on its AC-in side). It is currently protected by a C32 break… --- ## [V3.85 released for Venus OS](https://community.victronenergy.com/t/v3-85-released-for-venus-os/64284)
**Author:** [@nickdb](https://community.victronenergy.com/u/nickdb)\ **Replies:** 2\ **Last updated:** [23 October 2026 18:24 UTC](https://community.victronenergy.com/t/v3-85-released-for-venus-os/64284 "2026-10-23T18:24:59Z")
Just a heads-up that this was released to address some recent critical security issues, the change log is still to be updated, but some notes available here. --- ## [How does DESS handle smartgrid heatpump](https://community.victronenergy.com/t/how-does-dess-handle-smartgrid-heatpump/64288)
**Author:** [@Ardano](https://community.victronenergy.com/u/Ardano)\ **Replies:** 0\ **Last updated:** [23 October 2026 08:43 UTC](https://community.victronenergy.com/t/how-does-dess-handle-smartgrid-heatpump/64288 "2026-10-23T08:43:41Z")
Hey all, In the Netherlands net metering will stop end of this year so that means DESS needs maximize self usage of energy. This also includes taxes, so importing will cost tax and exporting won’t give it back. I’m tr… --- ## [VRM release notes 21-10-2026](https://community.victronenergy.com/t/vrm-release-notes-21-10-2026/64201)
**Author:** [@Barbara](https://community.victronenergy.com/u/Barbara)\ **Replies:** 3\ **Last updated:** [23 October 2026 05:42 UTC](https://community.victronenergy.com/t/vrm-release-notes-21-10-2026/64201 "2026-10-23T05:42:49Z")
Hi all, I would love to share with you the latest changes that were just added to production VRM, most of them on the dashboard: On the dashboard, temperature cards for Ruuvi sensors now show an extra “Air quality” ro… --- ## [MPPT RS450 / 200 - How is the insulation measurement carried out?](https://community.victronenergy.com/t/mppt-rs450-200-wie-wird-die-iso-messung-gemacht/63300)
**Author:** [@Broesel](https://community.victronenergy.com/u/Broesel)\ **Replies:** 1\ **Last updated:** [22 October 2026 22:12 UTC](https://community.victronenergy.com/t/mppt-rs450-200-wie-wird-die-iso-messung-gemacht/63300 "2026-10-22T22:12:04Z")
Hi, How does the MPPT RS perform the insulation measurement? I often see fluctuating insulation resistance values when the string voltage is still fluctuating significantly: in the morning during start-up or in the evening just before shutdown. Even without sunshine: often 100 MOhm — but there… --- ## [GRID Feed-in with DESS and battery at 100%](https://community.victronenergy.com/t/grid-feed-in-with-dess-and-battery-at-100/64002)
**Author:** [@KrAck](https://community.victronenergy.com/u/KrAck)\ **Replies:** 23\ **Last updated:** [22 October 2026 21:11 UTC](https://community.victronenergy.com/t/grid-feed-in-with-dess-and-battery-at-100/64002 "2026-10-22T21:11:03Z")
Hi, I’m a newbie and have the system now active for 1 week and really like its capabilities. This is my current setup: What I noticed is, that when my battery is at 100%, the system stops taking energy from the PV … --- ## [Mobile multi-phase inverters and ground relay question](https://community.victronenergy.com/t/mobile-multi-phase-inverters-and-ground-relay-question/64263)
**Author:** [@OGPS](https://community.victronenergy.com/u/OGPS)\ **Replies:** 3\ **Last updated:** [22 October 2026 18:55 UTC](https://community.victronenergy.com/t/mobile-multi-phase-inverters-and-ground-relay-question/64263 "2026-10-22T18:55:01Z")
In North America, we split a single phase AC grid connection into two phases with 180° phase rotation. This question could also be applicable to three phase systems connected to one or two phases on the AC input. In eith… --- ## [Charging home batteries via V2L from an electric car (230 V/16 A) – which Victron charger?](https://community.victronenergy.com/t/thuisbatterijen-opladen-via-v2l-van-elektrische-auto-230v-16a-welke-victron-lader/64208)
**Author:** [@MaartendeWit](https://community.victronenergy.com/u/MaartendeWit)\ **Replies:** 7\ **Last updated:** [22 October 2026 18:46 UTC](https://community.victronenergy.com/t/thuisbatterijen-opladen-via-v2l-van-elektrische-auto-230v-16a-welke-victron-lader/64208 "2026-10-22T18:46:18Z")
Subject: Charging home batteries via V2L from an electric car (230V/16A) – which Victron charger? Hello everyone, I’d like your advice on the possibility of charging our home batteries via the Vehicle… --- ## [Feature request: Dynamic per-phase allocation of ESS/DESS grid charging](https://community.victronenergy.com/t/feature-request-dynamic-per-phase-allocation-of-ess-dess-grid-charging/64204)
**Author:** [@erlingand](https://community.victronenergy.com/u/erlingand)\ **Replies:** 6\ **Last updated:** [22 October 2026 13:24 UTC](https://community.victronenergy.com/t/feature-request-dynamic-per-phase-allocation-of-ess-dess-grid-charging/64204 "2026-10-22T13:24:28Z")
Hi, I have a 3-phase ESS/DESS system with 3 x MultiPlus-II 48/5000, MPPT 450/200, Cerbo GX and VM-3P75CT ( and 135 kWh in batt. ). I am wondering if DESS can make better use of the available current on each individual … --- ## [VRM occasionally shows 3-phase data and nonexistent PV inverter on single-phase system](https://community.victronenergy.com/t/vrm-occasionally-shows-3-phase-data-and-nonexistent-pv-inverter-on-single-phase-system/64202)
**Author:** [@DanielRoux](https://community.victronenergy.com/u/DanielRoux)\ **Replies:** 0\ **Last updated:** [21 October 2026 10:09 UTC](https://community.victronenergy.com/t/vrm-occasionally-shows-3-phase-data-and-nonexistent-pv-inverter-on-single-phase-system/64202 "2026-10-21T10:09:26Z")
Hi I have noticed a strange behavior on VRM recently on one of my sites. This is a purely single-phase, on-grid installation, with loads on both the input and output of the inverter (MultiPlus-II 10000), a Victron MPPT … --- ## [Temperature Sensor display on 'Brief' page of New UI \[Feature Request\]](https://community.victronenergy.com/t/temperature-sensor-display-on-brief-page-of-new-ui-feature-request/64200)
**Author:** [@rsmorris123](https://community.victronenergy.com/u/rsmorris123)\ **Replies:** 0\ **Last updated:** [21 October 2026 09:45 UTC](https://community.victronenergy.com/t/temperature-sensor-display-on-brief-page-of-new-ui-feature-request/64200 "2026-10-21T09:45:40Z")
I have an Ekrano GX configured with two temperature sensors, ‘Outdoor’ and ‘Room’/‘Battery’. I can display these on the ‘Levels’ page ok. It would be really useful to have an option to display these on the ‘Brief’ page … --- ## [EVCS migration to MQTT for communication with GX device, EVCS does not show in GX device list](https://community.victronenergy.com/t/evcs-migration-to-mqtt-for-communication-with-gx-device-evcs-does-not-show-in-gx-device-list/64192)
**Author:** [@forest-gecko](https://community.victronenergy.com/u/forest-gecko)\ **Replies:** 0\ **Last updated:** [21 October 2026 04:03 UTC](https://community.victronenergy.com/t/evcs-migration-to-mqtt-for-communication-with-gx-device-evcs-does-not-show-in-gx-device-list/64192 "2026-10-21T04:03:03Z")
I have attempted to migrate a Victron EVCS (that has been in good operation for two years) from using communication via Modbus TCP to using the new MQTT based method but the EVCS does not show up as a device in the GX de… --- ## [RFID reader in EV charging station](https://community.victronenergy.com/t/rfid-reader-in-ev-charging-station/32981)
**Author:** [@Tjibbe](https://community.victronenergy.com/u/Tjibbe)\ **Replies:** 31\ **Last updated:** [20 October 2026 20:51 UTC](https://community.victronenergy.com/t/rfid-reader-in-ev-charging-station/32981 "2026-10-20T20:51:35Z")
We have an company paid car with an RFID card and consider to buy victron off-grid system Is Victron planning to add an RFID reader with backoffice for billing? Like reev.com or a own solution? Or are there any existin… --- ## [Multi RS 48/6000/1000 - The effect of 12A limit on MPPT tracker](https://community.victronenergy.com/t/multi-rs-48-6000-1000-the-effect-of-12a-limit-on-mppt-tracker/64163)
**Author:** [@Naizal](https://community.victronenergy.com/u/Naizal)\ **Replies:** 8\ **Last updated:** [20 October 2026 14:49 UTC](https://community.victronenergy.com/t/multi-rs-48-6000-1000-the-effect-of-12a-limit-on-mppt-tracker/64163 "2026-10-20T14:49:08Z")
Hi Victron Community, I need to know some information regarding the MPPT limitation for high current PV module, I am working on a project where I have the inverter from Victron which is Multi RS 48/6000/100 and it has d… --- ## [MPPT RS PV isolation information / capabilities](https://community.victronenergy.com/t/mppt-rs-pv-isolation-information-capabilities/64078)
**Author:** [@alexpescaru](https://community.victronenergy.com/u/alexpescaru)\ **Replies:** 7\ **Last updated:** [20 October 2026 12:41 UTC](https://community.victronenergy.com/t/mppt-rs-pv-isolation-information-capabilities/64078 "2026-10-20T12:41:16Z")
There is something confusing here… In the MPPT RS range of products, on the product brief present on the Victron website, PDF dated April 15, 2025, so about one year and a half ago, it says: PV Isolation fail level (4)… [Next page](https://community.victronenergy.com/c/products/4.md?page=1)