What are the Vent temperatures ?
With an empty load, Timed Dry, High Heat, the vent temperature should cycle somewhere between 135F and 160F
Check the Vent air temperature at the back of the Dryer using a probe-type thermometer.
If you have a Harbor Freight Store near you,
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Vent should be rigid metal.
Short lengths of flexible metal may be OK, if not crimped when moving the Dryer into place.
Foil Duct Tape is OK.
Check / clean the Dryer Vent
Disconnect the Dryer Vent and check for good air-flow there and where it exits the house.
Source: Maytag pyet344ayw dryer won't work on automatic.