Troubleshooting
Overloaded lists that looked fine, cable verdicts that will not clear, neutral warnings, missing gear on another device, and a blocked print window.
| Symptom | Likely cause & fix |
|---|---|
| A list is Overloaded although the total looks small | One phase carries most of the load. Press Auto-balance phases, or move hand-assigned devices to a lighter phase. |
| Headroom turned amber | Worst-phase headroom is under 20 %. Raise the feed, move gear to another list or accept that this distro is tight. |
| A generator list turns amber or red earlier than a mains list | Intended. Generator feeds warn from 70 % continuous load and turn red from 90 %, and they are also compared with the engine's kW. |
| North America: flagged at 85 % of the breaker | Intended. The NEC does not allow more than 80 % of a breaker for continuous loads. |
| A hoist or 400 V rack made the per-phase current jump | Correct behaviour since v2.13: an amp-plated 3-ph device loads every phase in full. Earlier plans under-read by 3×; re-check old plans. |
| A device sits on the wrong phase after adding gear | The plan was not pinned, so auto-balance reshuffled it. Press Pin auto phases once the layout is right. |
| Cable verdict Undersized for its breaker | The breaker in Protected by is bigger than the cable's rating. Use a bigger cross-section, or set Protected by to the breaker actually in front of this run. |
| Cable verdict Undersized — exceeds cable rating will not clear | The run takes the worst-phase current by default, and a drum, bundling or a hot day lowers the rating. Go up a gauge, unroll the drum, or type the current if this run really carries only a sub-load. |
| Voltage drop above 5 % on a long run | Shorten the run or increase the cross-section. Check that System matches the cable: a 1-phase run has about twice the drop of a balanced 3-phase one. |
| The drop went up after an update | Since September 2026 PowerSense takes copper at operating temperature and computes 1-phase and uneven runs on the loaded phase. The old figures read low. |
| A neutral-current warning appears | The list is marked mostly LED / switch-mode. Keep it; tell the electrician. See Check cable runs. |
| Feed above the preset range | Breaker size is beyond the rule-of-thumb table. Have the electrician engineer the feeder; the tool will not guess. |
| My gear or a list is missing on another device | Both devices must be signed in to the same account and online. Reload the page. See Account sync. |
| Account sync is paused — reload the page to reconnect | The sync connection dropped. Changes are saved on this device; reload when you have signal. |
| Local saving is unavailable in this browser | Private mode or full storage. Use a normal window; account sync is the only safety net until then. |
| Print window was blocked | Allow pop-ups for this site and print again. |
| CSV opens in one column | The file is semicolon-separated. Use your spreadsheet's import dialog and choose ; as the delimiter. |
| A preset device's wattage looks wrong for my unit | Presets are typical values. Edit the power in the row to the nameplate — and consider the safety margin for inrush. |
When the numbers disagree with the electrician
The electrician is right. PowerSense compares your list with guideline values; it does not see earthing, loop impedance, RCDs, how the cables are laid or anything measured on site. Use the plan to arrive prepared; the qualified person on site makes the final call.
Thanks for the feedback.