LECO

Lanka Electricity Company (Pvt) Ltd



Advice On Power Failures

We do everything we can to ensure that your electricity is reliable, but sometimes power cuts can happen. Here are some tips to help if you don’t have any power.

  1. Check with your neighbours

    1. Check if any of your neighbours or the other houses in your street has lost electricity.
    2. If it’s night, then it’s easy to tell if there is a power failure as you will be able
    3. If it’s during the day, ask some of your neighbours if they still have electricity.
    4. If they have, it’s likely that the fault is with your electricity connection or an internal fault.
     
  2. Check your fuses and trip switches

    Check your trip switch and mcb/fuses to see if these have cut your power. If they have tripped or blown, it’s likely that you have a faulty appliance or problems with your wiring.

     
  3. Report a power failure

    If you’ve determined the cause of failure is not due to an internal fault, please contact your customer service center or LECO Call Center (1910) immediately to report the power failure. It will be useful to mention your electricity account no for speedy restoration activities.

     
  4. Other Advices

    • Turn off electric cookers, heaters and sensitive electrical equipment such as TVs and computers.
    • Turn off electric cookers, heaters and sensitive electrical equipment such as TVs and computers.
    • Check on elderly, vulnerable neighbours or relatives.
    • If you are using a generator be careful where you site it in case of carbon monoxide poisoning. Make sure there is plenty of air flow around the generator to supply oxygen and remove the fumes.
    How to check your trip switch ( RCD) and mcb/fuses
    1. First check that you have a trip switch. It is also known as a RCD (Residual Current Device) or an ELCB (Earth Leakage Circuit Breaker). This will be on or near the Main Switch Board (MSB) or fuse box.
    2. If you are not sure, have a look at the MSB/fuse box. If you have a trip switch, you will be able to see a ‘push to test’ button, bar, or a ‘reset’ button.
    3. Please note that if you found the premises do not have a trip switch, you should require fixing a trip switch as early as possible for your own safety.
     
    If the trip switch is on:
    1. Turn the trip switch off and back on again. At times this safety feature may have been triggered without the switch physically moving, if this is the case this may reset it.
    2. If the supply is not restored, push the ‘test’ button. If the switch trips, you have a electricity up to MSB and some circuits do not have electricity due to an internal faults or blown fuses. This is because the ‘push to test’ button can only trip the switch if your local network operator’s supply is healthy.
    3. If the trip switch is on and the ‘push to test’ button does not trip the switch, then there is no incoming supply to the premises
    4. However note that defects in trip switch may lead it will not trip by pressing “push to test” button. You should require to test the functioning of trip switch by pressing the “ push to test” button in every two months to ensure proper operation of the same. In case if you found the trip switch is defective, you should require fixing a trip switch as early as possible for your own safety.
    If the trip switch is off:
    1. Try to switch it back to “ON”position. If it stays “ON” but the supply is still off, check you have not turned off the main switch on the fuse box.
    2. If the trip switch trips immediately, you have a fault with your wiring, an appliance or the fuse box. Then you turn the mcbs in the MSB in to off position or remove fuses and then turn the trip switch back to ON. The trip should then stay on.
    3. If the trip switches to the ‘OFF’ position again then you have a fault with the MSB/fuse box or the trip switch itself.
  5. Check your appliances

    If you think you have a fault with your appliances, fuse box or wiring you’ll need a qualified electrician and shouldn’t try to repair it yourself.

    How to isolate a fault with your wiring or an appliance
    1. Your house main switch board/ fuse box will contain either miniature circuit breakers (mcbs, these are generally up/down flip switches) or pull out re-wirable fuses. Main switch box should have a main switch/isolator and a trip switch.
    2. With electricity supply off from the main switch, flip all of the mcbs to off/pull out all of the fuses. Check if any of the fuses are damaged.
    3. Then without turning the power back on flip one mcb back into the on position/replace a single fuse, afterwards turn the power back on.
    4. If the power restored and the trip switch doesn’t switch off, then switch off your power again and repeat the process, ONE mcb/fuse at a time.
    5. Eventually the faulty circuit will cause the trip switch to operate, when this happens switch the power back off and turn the last mcb switch back to off/remove the fuse again.
    6. Then flip all your other circuit mcbs back on/replace all the other fuses. Turn the power on once more and they if there is only one fault the power should stay on. Now you isolated the faulty circuit. Next step is to identify the faulty appliance.
    7. Turning the power off again, you need to unplug every appliance ( radio, TV, washing machine, rice cooker, blender, water pump etc.) that runs on the faulty circuit. Once done, try flipping the mcb/replacing the fuse and turning the power back on. If the trip switch goes again and there is nothing plugged in, then there is probably a problem with the wiring and you’ll need the service from qualified electrician to rectify it.
    8. If the power remains on and the trip switch does not off, then one or more of the appliances you have removed is faulty.
    9. Turn off the power again and plug in and switch on ONE appliance and switch the main power back on. Repeat this until the trip switch goes. When this happens the last thing you plugged in should be removed before testing again. If the power stays on you have found your faulty appliance.

    If you have found a fault with your wiring, an appliance or your fuse box, it is always recommended to get the service of a qualified electrician rather than try to repair the fault yourself. Phone LECO for advice.


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  • Lanka Electricity Company (Pvt) Ltd
  • No. 411, Galle Road,
  • Colombo 03, Sri Lanka.
  • +094 011 2371 600
  • +094 011 2371 671
  • general@leco.lk