The phone number of FPL customer service is 1888-988-8249. Concerns regarding bill payments, unable to pay the bill online, power outage, power leaks etc, call the FPL customer service phone number and the lines are open 7:30 am - 7:30 pm Monday to Friday, 8:00 am - 5:00 pm Saturday. If you are looking for an online solution, visit the FPL contact us section and select the category you are facing the issue with. When you go through the answers provided by the FPL customer service and you are unable to find the correct answer to your problems. Go to the option, I have a different issue and click on continue. You will be provided an FPL customer service number as per the issue you are facing with.