We are the China-side desk that classifies the issue, finds the right parts and documents, and coordinates with the supplier — so you know what is possible before spending money.
You sold, installed or maintain a China-made ESS system and now need China-side coordination. We support the professional — not the end consumer.
We help classify whether an issue looks like configuration, component failure or firmware — and what evidence would narrow it down.
Part number, PCB, module or display — identified from nameplate and revision data, with compatibility evidence before anything is offered.
Preparing the file set and following up with the China-side supplier on warranty claims and RMA documentation.
When repair is not economical or the correct part is unavailable, we assess replacement options based on the system information provided.
These fields are what we need to start. More evidence = narrower classification.
Brand, exact model, serial number (optional but recommended).
Fault code shown, and a plain description of what happened.
Nameplate photo / APP screenshot / wiring photo.
Is the system stopped? Any smoke, smell, swelling, water or abnormal heat?
Model, nameplate and fault code checked; safety status confirmed.
We classify the likely issue type and what evidence would confirm it.
Parts, documents or replacement paths — with evidence and responsibility boundaries.
Quotation, RMA follow-up or supplier referral — whichever is applicable.
Start with the published checklists below. Additional topics remain in preparation.
In preparation — not yet published.
In preparation — not yet published.
In preparation — not yet published.
In preparation — not yet published.
Fill the form and the details are assembled into a structured email to our desk, or send the same set directly on WhatsApp. Nothing is submitted to a server until you press send in your own mail app.
If repair is not economical or the correct part is unavailable, we can assess replacement equipment options based on the system information provided.
See replacement options