Yes, a flat metal strip under a cover. If it doesn't appear to be melted/blown check the cleanliness where the screws hold it down, my blower suddenly stopped working one day and it turned out to be slight corrosion on the screws, dissimilar metals.....

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1991 300SE (my ride, 279,000 miles, looks almost new
1954 Cadillac (21 yo son's car, he bought when age 15)
1972 SeaBird 19 ft runabout (old but solid, slant six, Volvo sterndrive perfect condition, undergoing complete overhaul and refit)
1998 Toyota Rav4 (my sons daily driver when he is in the Continental US, PROUDLY serving in US Navy)