Key points in this article
Where errors repeat
The same fault-code mistakes show up again and again, usually because the guide is opened only after something breaks. Reading the notice before use is the cheapest fix and prevents most repeat visits, since the code was written precisely to be read in calm conditions, not decoded in panic after a failure.
Make it a habit
Before use, glance at the unit; after use, confirm it stopped billing; on anomaly, stop and report. Logging each recurrence helps spot a pattern. Dongshang New Energy reminds users that guessing costs more than one call, because a wrong assumption about a code can cascade into damage well beyond the original fault.
Keep records useful
Save the usage record so bills and faults can be traced later. When unsure, contact a professional rather than improvise. Clear, written notes turn a confusing fault code into a manageable, repeatable response, and the next person to face it will thank you for the paper trail you left.