If a fault code reappears within minutes of a correct restart, the underlying cause is persistent and requires a diagnostic review. We can check your event log and identify the root cause remotely — usually faster than waiting for GivEnergy support.
Book your free remote diagnosticBattery-only restartNot affiliated with GivEnergy Ltd. Independent diagnostic support.
I’ve used Ron a couple of times regarding issues with my Givenergy inverter and batteries after Givenergy went bust. My system stopped working properly so it was a stressful time but Ron resolved the issues and got my system working properly again. He’s really helpful and knowledgeable and I wouldn’t hesitate to recommend him and to use him again if the need arose.
I can add to the list of customers who had already 'given up' on GivEnergy due to their appalling customer service, and that was before they went into administration. So you can imagine my desperation when, having changed my ISP and my Inverter, predictably, proving to be the only device that didn't connect automatically to my new network, I found zero prospect of any customer support with GivEnergy having called in the administrators just five days earlier! The salvation came from Solar Tech Support. My IT advisor stumbled across their web site and some very helpful tips for beleaguered GivEnergy customers, as well as an offer to provide direct assistance. Nothing ventured, I decided to drop them an E-Mail, with very low expectations based on my experience of GivEnergy customer support. Within an hour Ron had responded with some pin point advice, and after a few exchanges of E-Mails he had nailed the problem, enabling the combined efforts of my IT advisor and solar installer to resolve it and reconnect my Inverter. Thank you Solar Tech Support, and Ron in particular, for coming to the aid of a deserted and despondent GivEnergy customer. Expert, razor sharp advice and first class customer service, even though I wasn't officially a customer.
After GivEnergy went into liquidation, just my luck, my battery started playing up (internal board crashed). Contacted my installer - not interested! Found Solar tech support on a Google search. Sooo glad I found this company! Ron is extremely helpful and has plenty of experience. He soon confirmed what the fault was, and helped me to get my system up and running again. Now moved my GivEnergy account to Solar tech support, and will definitely use again if I have more issues. Unusual to find such a helpful company in these times, no morons reading scripts, just direct contact with the engineer.
A superb service from Ron who went beyond the normal service received from other Tech support companies. I live abroad and was badly let down when my givenergy system failed (and the company went bankrupt) and the local supplier ran away from the problem. Ron sorted the problem and even accessed specialist coding for the inverter that would not be available for suppliers. Ron also ran a full diagnostic to insure that all was in good working order afterwards. Without Rons support and patient assistance I doubt I would ever have got the system back up and running. Well done and thankyou and you have a customer for the future.
Prompt and useful support regarding my Sunsynk system lack of performance. Ronald simplified the technical issues to make them understandable. Many thanks, looking forward to follow up.
Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.
BATTERY_ERROR with over-temperature — let it cool for 2+ hours firstGivEnergy Hybrid systems have a separate wall-mounted inverter and battery unit connected by a CAN cable and DC MCB. The order of shutdown matters — turning the inverter off before the battery can cause BMS protection events.
Press and hold the on/off button on the GivEnergy battery unit until you hear a beep and all LED indicators go out. This shuts the battery down gracefully before any DC isolation happens. Do not proceed until the LEDs are fully extinguished.
Open the battery's access flap to reveal the DC MCB breaker. Push it DOWN to the OFF position (some older systems have a separate wall-mounted MCB instead). Close the flap cover. This isolates DC current between the battery and inverter.
The AC isolator is a rotary switch mounted on the wall below or beside the inverter. Rotate it to the circle symbol (OFF position). This disconnects grid supply and solar from the inverter. The inverter display will go blank.
If your installation includes a separate PV array isolator switch, turn it off now. Wait at least 60 seconds before restarting to allow internal capacitors to discharge fully.
Rotate the AC isolator from the circle (OFF) to the line (ON) position — the line symbol points straight up. This restores AC power to the inverter first, which is the correct startup sequence.
Open the battery flap and push the DC MCB UP to the ON position. Close the flap. This re-establishes the DC link between battery and inverter and allows the BMS communication to initialise.
Press and hold the battery's on/off button until you hear a beep and the LED indicators illuminate. The battery will run a self-test sequence — LEDs may flash before settling. Wait for a stable pattern before checking the portal.
Allow the inverter to complete its startup sequence and reconnect to the cloud portal. The portal may show the system as offline briefly after restart — this is normal. Check the display and app after 10 minutes to confirm the system is back online and the battery SoC is reading correctly.
The GivEnergy All-in-One (AIO) integrates inverter and battery in a single wall-mounted unit. The AIO has a DC MCB inside its DC cover as well as a blue button on the battery itself — both must be used in the correct order.
Press and hold the blue GivEnergy button on the unit until you hear clicks and the battery turns off. This shuts down the battery first.
Open the DC cover panel on the AIO unit and push the DC MCB breaker DOWN to the OFF position. Close and tighten the cover. Wait 60 seconds.
Rotate the AC isolator switch to the circle (OFF) position. The AIO is now fully powered down.
Open the DC cover, push the DC MCB UP to the ON position, then close the cover fully. This restores internal DC power before turning the unit on.
Hold the small button to the right of the DC cover until the front indicator light appears. This powers on the AIO unit.
Rotate the AC isolator to the line (ON) position — pointing straight up. Wait 5–10 minutes for the system to come fully back online and reconnect to the portal.
Open givenergy.cloud and check the system status. After a restart the portal may show offline for 3–7 minutes while the inverter reconnects to the cloud. If still offline after 15 minutes, check the WiFi connection is working — see our WiFi setup guide.
Battery SoC may briefly show 0% or N/A immediately after startup while the BMS recalibrates. Within 5 minutes it should show the correct current state of charge. If it continues to show 0% or N/A after 15 minutes, check the event log for CAN communication fault codes.
Go to givenergy.cloud → My Inverter → Event Log. Look for any fault codes that appear after the restart event. A clean restart shows only "System start" or similar. If the fault code that prompted the restart reappears within minutes, the restart has not resolved the underlying cause — a diagnostic review is needed.
Check Settings → Timed Charge/Discharge windows, system mode, and reserve SoC. If a firmware update ran during or after the restart, these settings may have been reset to defaults. Re-enter your schedule if needed — see our charge schedule guide.
If a CAN fault persists after a restart — cable, firmware, and BMS causes.
Settings reset after a firmware update that ran during or after restart.
Re-enter your charge and discharge schedule after a firmware reset.
All GivEnergy fault guides, configuration pages, and services.
If a fault code returns after a correct restart, there is a persistent underlying cause. Tell us what code you're seeing and what happened before the fault appeared — we review the event log remotely and identify whether it's hardware, firmware, or configuration.
I’ve worked on hundreds of GivEnergy systems and know the kit inside out. If yours is playing up, my promise is simple — no fix, no fee: just £75 if we fix it, free if we don’t.
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