No hot air no heat

Either of these:
1. Air flow is blocked
2. Heating element is not working totally or not at all.
Check airflow for strong flow. If not. Unblock
check airflow for heating. If hot then heating element is working. If not hot, check heating element issue,ie, reset hi temp thermistor, check other thermistors, check heating element for continuity.
Report back what you find.

it will need service,
check pressures.
hot air as in heater on, so turn off the heater,
test in pure A/C mode Cold.
when both A/C and heat are on this is called defrost mode
which adds cold dry air to hot air and dehumidifes the hot air and window.

You will need to check all the duct work for lint buildup. This is the reason clothes won't dry or take a few cycles to dry.

Hi, If you are having problems with your gas dryer not heatingthe most common problem is that the ignitor goes bad. Even though it glowssometimes it is still not working properly. if you dryer is gas check out this gas no heat tip.... If you have an electric dryer, you can have many differentthings that can go wrong causing the dryer not to heat. check outthis electric no heat tip...

heatman101;'';';

Check for clogs in the vent air line. If dryer lint or some obstruction is slowing the air flow it will take longer to dry clothes. Also the dryer may not be getting hot enough. Check to see if the clothes feel hot or warm when you reach inside. If it feels hot enough it is likely an issue with air flow. heat and air flow are required to dry clothes.

Pull the dryer out and remove the lint hose . Turn on the dryer and feel if there is good air flow and if you feel heat . If there is good air flow and heat , dry a load of clothes , to see if they dry normally .
If there is not good air flow , then the blower wheel is probably stripped and needs to be replaced . If there is good air flow and heat , then the problem is in the vent ducting , between the dryer and to where it vents to the outside . Dryer could be pushed back too far , causing the hose to " kink " , restricting the air flow to the outside .
Remember , a dryer either heats or doesn't heat . If no heat , then a dryer problem exists . If heat , but dryer does not dry , then a vent problem is the cause ( except for maytag , which the blower wheel sometimes strips out ) .

Check to make sure your supply lines aren't crossed and that your hot water supply is connected to the dishwasher

Could be the heat switch on the motor or a grounded heat element

there is a blower wheel that move the moist heat air out,i think you have a clogg on the dryer vent side or the wall vent side,they need to be cleared or the dryer holds the moist hot air in the dryer and takes forever to dry,let me know how you do--mike

Same problem here. I read the manual very carefully. "OptiDry", "ExtraDry", "EcoDry", "condensation drying" -- lots of fancy words to cover the simple fact -- they DO NOT DRY the dishes. There is no heating element. I wish they would just state this up-front. Air drying the dishes for 24 hours after each wash is not workable for most users...