Yes, i have it on mine, its normal.
As a side note took mine for a long overdue service today as i had a problem with the remote box which had stopped working, which it had once before but i could easily see a loose wire that time.
Frank a Cleansmart worked his wonders and fixed the problem, gave it a good service - needed a new gasket around vac motors area and put a new storm sticker on the side as the original fell off. Machine all nice and clean and ready to roll again 1 and 1/2 hours later.