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Smart plug turns off on its own

A plug or switch cuts power at random times without a scheduled action.

Applies to
  • Smart plugs
  • Smart relays and switches
  • Energy-monitoring plugs
Last verified2026-10-14
Quick answerTroubleshooting · last verified 2026-10-14

A plug or switch cuts power at random times without a scheduled action. Most common cause to check first: Overload protection tripping under heavy load

Applies toSmart plugs, Smart relays and switches, Energy-monitoring plugs
CategoryElectrical
Escalate whenIf the plug switches off under load and is warm, treat it as an overload or hardware fault and stop using it until an electrician checks the circuit.
Last verified2026-10-14
How to cite this pageIoT Atlas. "Smart plug turns off on its own". https://hi-spark.net/troubleshooting/smart-plug-turns-off-randomly.html Last verified 2026-10-14.

Likely causes

  • Overload protection tripping under heavy load
  • Automation, timer or power threshold rule still active
  • Firmware restart after a failed update
  • Loose wiring in the plug or socket
  • Cloud outage leaving the device in a safe state

Quick checks

  • Note the load connected when it switches off
  • Check the plug temperature
  • Review all scenes, timers and power rules
  • Check firmware version and recent restarts

Step-by-step fix

1

Disconnect the load and test switching with no load

2

Delete every automation and timer for that plug

3

Update firmware and reboot the plug

4

Move the load to another circuit to compare

5

If it still trips, replace the plug or have the circuit checked

Frequently asked questions

Why does this happen: Smart plug turns off on its own?

A plug or switch cuts power at random times without a scheduled action.

What is the most likely cause?

Overload protection tripping under heavy load; Automation, timer or power threshold rule still active; Firmware restart after a failed update.

What should I check first?

Note the load connected when it switches off; Check the plug temperature; Review all scenes, timers and power rules; Check firmware version and recent restarts.

How is it fixed?

Disconnect the load and test switching with no load; Delete every automation and timer for that plug; Update firmware and reboot the plug; Move the load to another circuit to compare; If it still trips, replace the plug or have the circuit checked

When should the case be escalated?

If the plug switches off under load and is warm, treat it as an overload or hardware fault and stop using it until an electrician checks the circuit.