Step 1: Check if the connection to the household power is loose or if there are too many appliances connected to the same outlet. Failure could be caused by over current in your household power.

Step 2: Check the iron's power cord for visible signs of damage (e.g. kinks, flaring of the braiding). Remove the other appliances and switch it on again. 

Step 3: If the household power goes off again, please contact a Philips representative for assistance.