My mothers 1979 Whirlpool Dryer Model LFI7801 was an Imperial Seventy model not a Supreme….did they change the model name for the 7800 series between the LD and LF series?….PAT COFFEY
<blockquote>did they change the model name for the 7800 series between the LD and LF series?</blockquote> As I recall, yes. LF series was the first electronic control machine, which was called the "Solid State Mark Series." The 2nd-in-line 8800 units were dropped, which put the 7800 2nd-in-line so it became the Imperial.