Small Engines (Lawn Mowers, etc.): Electric mower cuts out now wont start, lawnmower repair, repair person

Question
My electric mower used to run fine when I first started it.  Then after about 15 minutes, it would stop, as though it were ground fault interupted.  I'd have to let it sit for 5 minutes or so and go weed, then I could hit the reset button and restart it. The longer I mowed the shorter the mowing time became (sometimes down to 2-3 minutes and the longer the wait time became (sometimes up to 10-15 minutes).

Yesterday I took the mower out to cut my lawn for the first time this year.  It stopped all together.  Now when I try to start it it whines a little, but it does not start.

Can this be fixed?  Would a normal lawnmower repair person know how to fix it?

Thanks

Answer
Basically there are only a few parts that cost feasible to repair on electric mowers; switch, cord, rectifer.

The rectifer converts AC house current to DC current for the motor.  You can test the rectifer with a multimeter.

Do you have a multimeter?

You can also check the switch and cord with the multimeter.

Let me know if  you have a multimeter.
Eric