Switch off and unplug non-essential loads, but plan separately for refrigeration, alarms, routers, pumps and medical equipment. Use the main isolator only if no essential circuit must remain on and the installation supports it safely.
A blanket ‘turn everything off’ instruction can spoil food or disable security; leaving everything on can increase fire, surge and consumption risk.
The essentials
- Which loads are genuinely essential while away.
- Fridge contents and expected trip length.
- Alarm, CCTV, router, pump and medical-device requirements.
- Generator, inverter and solar operating mode.
What to check first
Start with the evidence already in front of you. A precise account, meter, product or safety detail is more useful than guessing from the outcome alone.
- Which loads are genuinely essential while away.
- Fridge contents and expected trip length.
- Alarm, CCTV, router, pump and medical-device requirements.
- Generator, inverter and solar operating mode.
Step by step
Work through the existing transaction, account or installation in order. Keep the reference and result from each step before moving to the next.
- Empty or plan refrigeration for a long trip.
- Unplug non-essential electronics and heating appliances.
- Test required security and backup systems.
- Leave emergency contacts and meter details with a trusted person.
Mistakes to avoid
These shortcuts often turn a traceable problem into a second payment, a lost evidence trail or a safety risk.
- Leaving irons, kettles or water heaters energised.
- Switching off a circuit needed by a medical or security system.
- Leaving a generator arranged to run unattended indoors or without safe automation.
When to escalate
Ask a qualified electrician to separate essential circuits or inspect an unfamiliar distribution board before travel. Do not improvise wiring to keep only one load on.
Frequently asked
Will a prepaid meter consume credit if every appliance is off?
The premises may still have small standby or shared loads. Record the meter before and after an isolation test rather than assuming zero use.
Should I turn off the main switch?
Only if all circuits can safely be de-energised and no essential load is required. If unsure, unplug non-essential appliances and get professional advice.
Research sources
Official guidance, product information and public sources were reviewed on 27 July 2026.