Blow dryer works.. It just won't blow hot anymore.. It just blows cold air.

Yes I am find to drive

did you clean the vent line?THAT COULD MAKE IT RUN HOT THE AIR CAN'T BLOW OUTSIDE,BUT WITH THE DRYER HAVING HEAT WHEN IT STARTS AND THEN AFTER LIKE 10 MINUTES NO HEAT IT SOUNDS LIKE YOU HAVE BAD GAS COILS,WHEN THE COILS ARE STARTING TO FAIL THEY WILL WORK FOR LIKE THE FIRST 10 TO 20 MINUTES AND WHEN THEY HEAT UP NO GAS,WHEN THE COOL THEY WILL WORK AGAIN,I WOULD CHANGE THE COILS AND CLEAN OUT THE DRYER AND VENT LINE,THIS SHOULD BE DONE ONCE A YEAR SO YOU DON'T HAVE A FIRE AND YOUR CLOTHES WILL DRY ON TIME,EVERYONE THINKS SOMETHING IS WRONG WITH THE DRYER AND ALL THAT HAPPENS IS THE VENT LINE AND THE DUCT WHERE THE LINT FILTER SLIDES INTO FILLS WITH LINT AND THE AIR CAN'T BLOW AROUND GOOD ANYMORE,ALSO WITH A SHOP VAC VAC UP THE LINT WHERE THE BURNER AND MOTOR IS AND THEN SET THE VAC UP TO BLOW AND BLOW THE MOTOR AND GAS BURNER OUT,DO THIS AND YOU'LL HARDLY HAVE ANY PROBLEMS WITH THE DRYER

your heater core is possibly stopped up if there has been a radiator leak and stop leak has been poured its definetly clogged or could be a faulty thermostat

you have moisture in the system this causes your expancion valve to freeze up an stop working, thats why it works for sort time and when it de-freezes stars working again. you need to do a EVAC & RECHARGE with a good AC service equipment, specially attention to pull vacumm por at least 20minutes so you get all moisture out of the system.
Good luck

Hi,
If you have a gas dryer.
The most common problem with a gas and no heat is the ignitor going bad...

Here is a tip that I wrote about that problem...
Gas Dryer not Working Gas Dryer Not Heating
http://www.fixya.com/support/r4398592-gas_dryer_not_working_gas_dryer_not

If your dryer is electric..
There could be a number of different problems...
Check out this tip that I wrote about this problem...

Dryer Troubleshooting Electric Dryer won t Heat
http://www.fixya.com/support/r3866345-dryer_troubleshooting_electric_dryer_won

heatman101

when a dryer does'ny blow hot air,it's normally either the element or the stats on the element.

more than likely the heating element has gone out. if your clothes have no heat then the element is the most likely cause. you can get one for anywhere between $30 - $50. you'll need to know model and serial #'s. usually easy to replace.

I am sorry, do not try to fix it. There are small resistors that are bad, unless you have a nother one with a different problem to rob for parts chunk it out. Sorry these things are a pain to find parts for. 

Check your heat sensors, one or more must be OPEN.

If you can turn it on and have the door open, hold the door switch in and see if you have a glow from the heating element. If not, your element is broken. That is if it is an electric dryer. If it is a gas dryer you need to check the pilot light or the thermo sensor.