It could be a problem with the terminal block in the back of the dryer. You'll need to unplug the dryer and check the block. I learned this on home depot.com/ApplianceRepair. Should cost you under 75 dollars to fix if you do it yourself.
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First check to see that the exhaust venting line is clear (not full of
lint) as well as the path in the dryer to the line. This is the most
common cause of no heat. Second set the knob to heat turn on dryer
with the lights off and the door open but the "open door" switch so that
it still rotates with the door open. Look at the back of the rotating
drum for a orange/red glow behind the drum (the heater coils). If there
is no glow the heater coils are probably broken. As the dryers age,
the amount of thermal cycles the heater elements go through until the
point when the coil wire breaks. There usually two heater coils behind
the rotating drum (one hotter than the other and when combined the
hottest heat temperature setting. You will need to pop open the top
where you see the belt that turns the drum. The belt is removed from the
spring loaded tensioner pulley at the base of the dryer. Then you can
lift the drum out to get to the heater coils. Since no heat, both should
be broken and will require replacement.
depending on which model roper dryer it can be a thermal fuse,high-limit thermostat,cycling switch,burned off wire in control panel,check each side of the heating element to ground and find 125 v.a.c. then on the side of the element that has low or no voltage on it to ground start at the element and back track the components leading to the dead leg on the element till you find 125 vac to ground and replace or repair component or wire,then you should get 240 to 250vac across heating element terminals
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...
Make sure to check all the thermal fuses in the dryer.
if one of the has not got any continuity then replace it.
there is also a chance that the ignitor has gone bad and is not allowing the gas valve to open.
Thanks for using FixYa. The first thing that should be checked is the Thermal fuse which is mounted to the exhaust duct inside the back cover. If this fuse goes bad the dryer will not heat and you’ll have to replace it as it cannot be repaired. If this is fine then you’ll need to check the thermostat, igniter and coils. Please do rate the solution if the issue is resolved or post a comment for further assistance.
Good day, Timer woun't run if there is n heat. 1. Check to see you are getting 230 volts to the machine. The motor uses only 115 so is not a good indication. 2. Remove back cover. You will need an ohm meter to test the components. A. In the center bottom is a skinny white bakelite device held on with one screw. Remove one wire and check. It should check zero ohms. If not replace. B. On the bottom right is a canister with the heating element terminals sticking out. They should test at 30 or less ohms. If not replace the heating element. C. There are about 3 other limit thermostats in the area you're working. They should all check at zero ohms. Replace as needed.
Below is a tutorial on changing a heating element.
Electric (Kenmore - 60931) dryer takes forever (several cycles) lately to dry clothes set on high heat (actual heat in tub feels low though). There are no obstructions in the venting and the 240 volt connection is fine. The timer rotates the dial (timer motor working). Help!!!
check for a lint blockage in the blower discharge line. there is a quarter size overload in the metal blower line. evidently the heat is building up to the point that the overload is kicking out. once it's cool it operates fine.