What this reading usually means
If you are asking why Eyedro energy monitor shows power use when the main breaker is off, the short answer is that the monitor is detecting current somewhere other than the branch circuits you expected to shut down.
That can happen because of CT placement, backfed circuits, solar or generator equipment, shared neutrals, or wiring that remains energized ahead of the main disconnect.
Eyedro, like other circuit-level energy monitors, measures current flow through current transformers (CTs).
It does not directly “know” whether your breaker is on or off; it only reports the electrical activity the CTs detect on the conductor they are clamped around.
How Eyedro measures electricity
Eyedro systems use CT sensors to read amperage on one or more conductors and then estimate power in watts using the measured current and the voltage settings for the device or installation.
In practice, that means the monitor is only as accurate as the wiring path it is monitoring.
- CT clamps must encircle the correct hot conductor.
- Voltage reference helps the device convert current into power.
- Sampling interval affects how fast changes appear in the app or dashboard.
If a conductor remains energized upstream of the main breaker, or if another circuit feeds the same conductor path, Eyedro may still show load even though the main breaker appears off.
Common reasons Eyedro still shows usage
The main breaker is not the only path for power
In some electrical panels, turning off the main breaker does not isolate every live source.
A subpanel, a generator interlock, a solar inverter, an energy storage system, or a separate service connection can keep parts of the system energized.
If Eyedro CTs are installed on a line that still has current from one of those sources, the app will continue to show usage.
The CTs are clamped on a conductor that remains energized
Eyedro monitors the wire inside the clamp, not the breaker handle position.
If the CTs are placed on service entrance conductors upstream of the main breaker, the monitor can read power even after the main is switched off.
This is normal if the monitored conductors are still live from the utility side.
Backfeed from solar, battery, or generator equipment
Backfed power is a common reason for unexpected readings.
A solar PV inverter, battery backup system, or standby generator can export or circulate power in ways that keep a line active.
In homes with distributed energy resources, the electrical panel may show zero on some circuits while the monitor still records current on the service conductors.
Shared neutrals or multi-wire branch circuits can confuse troubleshooting
Shared neutral systems and multi-wire branch circuits can complicate diagnosis because current may be split across conductors in ways that are not obvious from breaker positions alone.
While the breaker may be off for one leg, another connected leg can still carry current and influence what Eyedro sees.
CT direction or placement is incorrect
If a CT is installed backward or on the wrong conductor, the reading may appear inverted, offset, or unrelated to the breaker you turned off.
Incorrect placement is one of the first things to verify when your Eyedro data does not match what you expect from the panel.
Metering on the utility side of the service disconnect
Some installations place sensors ahead of the main disconnect, especially in whole-home monitoring setups.
In that configuration, the monitor can continue to show demand even when the breaker inside the panel is open because the service conductors are still energized until the utility disconnects power.
How to verify whether the reading is real
To determine whether the usage is actual load or a setup issue, compare the Eyedro reading with the electrical configuration of the site.
Start by identifying exactly which conductor each CT is monitoring and whether that conductor is on the line side or load side of the main breaker.
- Check whether the monitored circuit is upstream or downstream of the main breaker.
- Look for solar, battery, or generator equipment tied into the panel.
- Confirm that the CT orientation matches the installation instructions.
- Review whether the panel has a subfeed, transfer switch, or alternate supply.
If possible, compare the reading with a clamp meter or a licensed electrician’s test instrument.
A direct measurement at the conductor can confirm whether current is actually flowing.
Safety steps before troubleshooting
Working inside an electrical panel carries shock and arc-flash risk.
If you are not trained to inspect live electrical equipment, stop and contact a licensed electrician.
Eyedro can help identify a pattern, but it should not be used as the only basis for opening energized equipment.
Safe troubleshooting priorities include:
- Do not remove panel covers unless you are qualified to do so.
- Do not assume the main breaker makes the entire system de-energized.
- Verify the presence of backup power systems before touching any conductors.
- Use a licensed electrician for CT relocation or panel reconfiguration.
How to interpret the Eyedro app or dashboard
Eyedro dashboards may show current draw, watts, daily kWh, and historical trends.
A brief spike after switching off the main breaker could reflect residual activity, inverter behavior, or sensor timing.
Persistent power readings, however, usually indicate that one of the monitored conductors is still active.
Use the trend data to answer a few practical questions:
- Does the reading drop to zero immediately or remain steady?
- Is the same load pattern visible every time the breaker is off?
- Does the apparent usage match the size of a known backup or standby system?
These clues help separate true electrical consumption from a wiring or sensor issue.
What to check first if the main breaker is off but Eyedro still records power
When users report that Eyedro energy monitor shows power use when the main breaker is off, the fastest path to an answer is usually a structured check of the installation:
- Identify whether the CTs are on utility service conductors, feeder conductors, or branch circuits.
- Determine whether any inverter, solar array, battery, or generator can energize the same path.
- Inspect CT placement for direction, placement, and conductor alignment.
- Confirm that the breaker being switched off truly isolates the monitored load.
- Have a licensed electrician test the circuit if uncertainty remains.
When the reading is expected, not a fault
In many whole-home monitoring setups, seeing usage with the main breaker off is expected because the monitor is reading line-side service conductors or backup-fed equipment.
The key is not whether the app shows a number, but whether that number matches the wiring design and the energy sources connected to the site.
If the reading is consistent with a solar inverter, battery backup, or upstream service conductors, the Eyedro data may be functioning correctly.
If it appears inconsistent with the site layout, CT inspection and professional electrical verification are the right next steps.
