Sunsynk Reviews 408

i’m delighted with the equipment that has been running for 2 years now , had a problem with a new battery I recently purchased, and the support team were fantastic helping us to test the battery and eventually arranging for it to be swapped out. A Team thank you so much to all the great staff.

Absolutely amazing experience with SunSynk today, I’ve had some issues with my battery Joy was an absolute legend in getting it sorted out and escalated to 3rd line with my installer.

Am very happy with the backup service from sunsynk they are super friendly and know their product. hard to take me step by step to sort out the issue i had with one of their inverters remotely
Appreciate

Sunsyk online customer support team is always available, responsive and quick to help and guide. Testament to great product and fantastic post sale support. I will always recommend sunsynk. Thank you and regards Ryan Woods

Are experiencing a data problem on the App. Reporting it was a breeze and a solution was given and now just waiting to see if problem is solved.
Very prompt service!

Anna William excellent communication and she sorted my problem in 5 minutes
Thanks again

Had a pv system fitted through Comtact Solar with EDF, very happy with both, it has Sunsynk inverter and batteries, they have performed very well over the last 6 months that they have been installed. Recently had a charging question, contacted support and they were very knowledgeable and happy to log onto my system and make the required changes for me. Can't get better than that.

We have had reason to ring Sunsynk and participate in their live chat facility, we have found their agents helpful and would highly recommend them.

To complete the story, my 8kW Sunsynk Inverer was replaced under warranty, approximately seven months from first failure. That my installer ceased trading during the attempts to resolve the problem, added to the delay.
......
I previously published a scathing review of Sunsynk (text below) which needs correction. My Installer had twice failed to identify and repair an apparent inverter fault, losing me over 100 days of generation. I attributed this to poor support of my installer by Sunsynk and poor equipment design. This was not so!. The real problem was a loss of experienced personnel within that installer and their then lack of system knowledge. Unknown to me, the installer ceased trading in late December 2025, which compouded my (and Sunsynk's) difficulties. I have since received excellent help from another installer and from Sunsynk Support engineers. The engineer identified that the system was not installed correctly from day one which contributed to the repeated failure. The sytsem is now restored and working properly for the first time.
I leave the original text below as an indication of my misplaced frustration at the time.
Start of Original Review
Original Title: Faulty Inverter: 10 year warranty is nonsense
Original Text:
"As elsewhere, woeful support (for your instaler) if you have a problem...
A Sunsynk 7.5kWp system with 8kW hybrid inverter and 10kWh of battery storage was installed by a registered installer in March 2024. In August 2025 the AC side of the inverter failed but the system said "Normal". It took the installer 55 days to get and install a replacement internal "Thermal Fuse".
In late Nov 2025, the inverter failed again with the same symptoms while delivering 67% of rated power. The inverter or its design is clearly faulty and I want a new inverter under the 5/10 year warranty I was given a copy of.
49 days since the second failure my installer has has not provided any indication of when the fault will be corrected or the inverter replaced.
I contacted another registered Sunsynk installer for suggestions to be told "We no longer install Sunsynk because of their poor support".
I have no confidence that Sunsynk can deliver equipment that will remain reliable over the expected inverter life time. I am seriously considering cutting my losses by having their inverter and batteries removed and replaced by equipment from another manufacturer."
End of original review
To be clear, I no longer hold those views and I thank Sunsynk's Global Client Liaison Manager, their engineers based at Warrington for their assistance and other installers who have indicated a very high level of reliablity for Sunsynk equipment .

Very helpful. My Solar Panels had been installed, Sunsynk Inverter and App working perfectly. I just needed some information about changing to a new router and A from Customer Support quicky sent me the information I needed.

Chat available almost immediately. Confirmed what I suspected, that the cold was affecting my system. Reassured me that the course of action I was taking was correct. All of this on a Sunday afternoon too.

Anna gave excellent service, quick and knowledgeable. Fault quickly resolved remotely, phew! Links sent to me with further information! Great service!

Had an issue with the app, Vignesh helped me fix the problem. Great help

Had an issue logging into the app and as such couldn't use the 24/7 chat to help solve the issue.

Support responded to my ticket within 24 hours and resolved my login issue and so all is good now.

The help desk has always been very quick, responsive and helpful whenever I have contacted them

Swift assistance and no hiccups.

Easy to use service

Sorted out my query in minutes.

Great experience dealing with the customer support of Sunsynk and their equipment has worked without an issue for a while. Was supported very quick and professionally by Mohammed over chat and received the solution to a query. Would recommend using their equipment.

I had outstanding service by Muhammed Ashique in solving a major issue on my solar plants firmware. Super responsive and indeed very professional. Has been a pleasure to receive his input to solve my issues. Cheers Hans

Top notch inverters.
Great support.
Upgraded my firmware on Christmas day!