Answer Deb, You forgot to include a model number, but the F-01 error code on most Whirlpool built dryer indicate a failure in the machine control board. " F:01 Primary Control Failure F:01 flashes when there is a primary control failure. Replace the machine control electronics. " It appears your on target as best we can tell. Read More... Answered by AppliancePartsPros.com | Tuesday, July 1, 2014