Not flow enough air in vent - Heating & Cooling

Check the gas vents (holes) on the burner, are they clean and clear? Make sure its getting enough air to igniter. Try turning on the gas and light it using a match. If it stays lit the igniter is not working properly, if it does not, either the valve gas vents are clogged or its not getting enough air to keep burning.

could be one of a few diff issues. firstly, the air pressure switch may be failing. check to ensure the inducer motor is providing enough air flow for the air switch to close. if inducer motor isn't creating enough air flow the faults is within the motor. If the airflow is enough, then fault maybe the air switch. you also need to check for any blockage in the exhaust. ensure no debris is blocking the vent going to outside

There are 3 likely possibilities:

1. Bad heater motor - a dead heater motor means no air flow
   
2. Disconnected or hole in air flow hose - sometimes a vent hose will dislodge just enough to disrupt air flow. Check underneath the inside of the passenger compartment for any loose hose connections. You can also turn the heat (or vent) on HI and check the air flow hose for any pinholes that also could disrupt your air flow
3. Bad Control Center - if the Control Center is bad, it won't trigger the heater motor to turn on and push air
   

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 ) .

Yes and no. The element is rather simple, but is more difficult to get to. Before you dig into it, check your vent. You need to have a strong flow of air at the outside vent termination. Try to avoid any flex venting material if possible, and get the shortest, straightest vent possible to get the best air flow.

Generally, only two things cause your problem. Bad coils or safety thermostat shutting off flame because it doesn't travel far enough down the tunnel (due to low air flow).

Bad safety thermostat going off prematurely can also cause this...but not very common. If you're sure you changed the coils correctly. Check internal of dryer venting for obstruction. Hold lint filter up to light to see if blocked. Run water onto filter face to see if it can travel through. (can be clogged by fabric softener sheets). If you're sure air restriction is not internal to the dryer remove vent hose from wall and direct out window. Start dryer and see if air flow is now enough to keep the unit running longer. If it now works you have a blockage in the vent piping in the wall or beyond.

Check to see if vent hose is not restricted. If it goes up inside wall, it could have lint clogging it. Most dryers regulate heat with air flow. Wet clothes can restrict flow even more if vent is clogged or pinched. Air flow is crucial to heat cycle. If the vent is resrticted, heat will rise quickly, but not cool down fast enough to allow heat thermostat to cool down and turn on heating element again. It may seem hot inside dryer but if no air flow it will increase dry time or not dry them at all before timer shuts off. If vent goes up inside wall, buy a small chimney brush and try cleaning out vent from attic if you can.

There has to be something blocking the output somewhere. Check where vents come out to see if something has fallen down to block them.