iMac won't turn on

[tximacusr]

My 2010 iMac won't turn on.
I used it the day before, then turned off the iMac and power protector.
Today, after I got back from work and turned on the power protector to use the iMac, but after 4 hrs it doesn't turn on. It usually takes about 45 mins before the iMac can be turned on.

I left the power protector on all last week and the iMac turned on right away. Any advice is appreciated.

 

[quagmire]

Try plugging the iMac directly into the outlet and see if it will boot up. If so, it probably is the power protector that has gone bad.