Dryer only blows cool air

Approximately 6 cubic feet.

One possibility: Air flow! Make sure that the lint trap is cleaned before each cycle. You likely need to thoroughly clean out the vent piping out the back of the machine- a buildup of lint in here can also restrict airflow.

SOUNDS LIKE A MOTOR BUT SOMETHING COULD BE CAUGHT IN THE BLOWER WHEEL SHROUD

Sears.com
Parts direct
Look it up by model number
Then part discription
And they will send you the part for a fee

check outside drye vent where it goes through the wall they clog up with lint sometimes and force the escaping warm air to back up which causes sensor to give wrong reading if this is clogged just clear it till you feel the air coming through also check vent at bottom of dryer disconnect flex pipe and check for clogs there as well ..and always clear lint trap after every load

Is the kenmore heavy duty 80 series extra capacity plus washer a high quality product?

The vent box inside the dryer still has lint in it. You need to reach way inside to get at it. Turn power off.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c

It sounds like your heating element has broken. There are several links provided on this site on how to replace it. You might want to take a look at davesrepair.com to purchase a new one. He has pretty good prices on the element.

Where is the location of the heating element for a Kenmore 80 series dryer heavy duty model # 77834795

The following link explains how to diagnose a dryer "no heat" problem:

http://www.fixya.com/support/r630242-dryer_runs_but_not_heat

If you require addtional assistance, please let me know. I hope this helps you diagnose your problem.