Share your inverter serial number and SolarEdge Go fault codes. We confirm whether it's a warranty replacement, coordinate the claim, and manage the swap.
Book HD-Wave diagnosticBack to SolarEdge hub12-year warranty on all HD-Wave models. We handle the claim process with SolarEdge on your behalf.
STS installed/commissioned an extra Givenergy battery for me. Communication was great and the engineer did a great job and even tidied up the existing wiring which made it look a great deal nicer than it did. Very happy so far and grateful to the team for their professionalism.
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.
Thank you for your diligence. On this occasion the battery was able to be saved but they have given a route to hopefully arrange a repair from the manufacturer.
Absolute legend found the fault in 5mins definitely will be using again definitely would recommend to others .
My 3-year old GivEnergy Solar/Inverter/Batteries installation went down with all generated electricity going to the grid and absolutely no help available from the Administrators! Thankfully, I found Solar Tech Support and Ron, who used to be a GivEnergy installer. His knowledge and ability are phenomenal and he sorted everything out remotely. I cannot recommend him more highly and a really pleasant guy to deal with! Very many thanks Ron!!
Ron dealt with a battery issue within an hour on a weekend remotely. Very clear instructions to fix the issue worked first time. Excellent service.
Known issue: SolarEdge HD-Wave inverters from certain 2017–2020 production batches have experienced higher-than-expected failure rates. If your unit is within the 12-year warranty period, SolarEdge will replace it. Keep your serial number and fault code evidence ready — these are required for the warranty claim.
Work through these steps in order. The fault code and production history from SolarEdge Go and the monitoring portal are essential for the warranty claim.
Look at the front of the HD-Wave inverter. There are three LEDs: DC (left), Communication (middle), and AC/Grid (right). If all three are completely dark, the inverter has no internal power.
Check the AC isolator at the consumer unit first. If the isolator is on and LEDs are still dark, the inverter's internal power supply has failed. This is the most common HD-Wave failure mode.
The inverter is powered but not converting DC to AC. This could be an internal component failure, a DC string fault, or a firmware issue. Continue to Step 3 to read fault codes.
HD-Wave inverters are rated to approximately 60°C ambient temperature. In enclosed spaces — cupboards under stairs, unventilated lofts, south-facing walls in direct sun — the inverter can exceed its thermal limit and shut down as a protective measure.
If the casing is too hot to hold your hand on comfortably, allow it to cool for 30–60 minutes with ventilation, then check if it restarts. Repeated thermal shutdowns mean the installation location needs better airflow or the internal fan has failed.
The HD-Wave has no external fan — it uses a fanless convection design. If the internal thermal management has failed, the unit will need replacement.
Open SolarEdge Go on your phone, stand within 3–4 metres of the inverter, and attempt to connect via Bluetooth. If it connects, navigate to Status and Alerts.
If SolarEdge Go cannot connect at all (no Bluetooth response), the inverter's communication module has also failed — confirming a total internal failure. Screenshot the error for the warranty claim.
Log in to monitoring.solaredge.com and look at the production graph over the last 1–3 months. HD-Wave inverters approaching failure typically show a characteristic pattern:
Export or screenshot this production data — SolarEdge's warranty team will request it as evidence of the failure.
If you have a multimeter and are competent to use it safely, measure the AC output voltage at the inverter's external AC connection point. During daylight with DC power available, a working inverter should show approximately 230V AC output. If the LEDs are green but AC output is zero, the inverter's output stage or AC relay has failed internally.
Do not open the inverter enclosure. Do not touch DC wiring or connectors. This test is at the external AC terminal only. If you are not confident with electrical testing, skip this step and proceed to Step 6.
If the HD-Wave has failed, contact a qualified solar engineer with the following information ready:
The engineer will submit the warranty claim to SolarEdge with this evidence. SolarEdge typically approves within 3–5 working days and ships a replacement unit directly. The physical swap takes 2–3 hours on site. Total time from claim to working system is usually 2–4 weeks.
The SolarEdge HD-Wave is a single-phase string inverter used in the majority of UK residential SolarEdge installations. The "HD-Wave" name refers to the inverter's patented power conversion topology — a distributed switching architecture that reduces the size and weight of the unit compared to conventional inverter designs. Models range from SE3000H (3kW) to SE6000H (6kW), with the SE3680H being the most common in UK systems.
Between 2017 and 2020, certain production batches of HD-Wave inverters experienced higher-than-expected failure rates. The predominant failure mode is an internal power supply or output stage fault that causes the inverter to stop producing entirely. SolarEdge has not publicly disclosed the specific component responsible, but field engineers consistently report capacitor and relay failures in affected units. The failure is typically sudden — the inverter stops producing overnight or mid-day with no preceding fault code — though some units show a gradual decline in output over several weeks before complete failure.
SolarEdge covers these failures under the standard 12-year warranty. The warranty replacement process requires the engineer to submit the serial number, fault code evidence, and production data. SolarEdge ships a replacement unit (new or refurbished) directly. The original optimisers on the panels do not need replacing — they are compatible with the replacement inverter and will re-pair automatically once the new unit is commissioned.
Return to the SolarEdge brand hub to explore other common faults and services.
SolarEdge support hubShare your inverter serial number and SolarEdge Go fault codes. We confirm the failure, submit the warranty claim to SolarEdge, and manage the replacement from start to finish.
Due to unprecedented demand we’re currently only carrying out on-site work in Yorkshire, and replies are taking up to 7 days. Remote diagnostics continue for the whole UK as normal.
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