My kenmore gas dryer model72738 only produces heat for a minute or so, the timer will not shut off the machine in the auto sections except the minute timer section,it will continue to run for hours with no heat.I've replaced the cycling thermostat believing it was bad. Is the problem the timer assembly? If so out do I test it?
FIRST OFF IN THE AUTO DRY MODE THE DRYER USES THE MOISTER SENSOR AND AS LONG AS THE MOISTER SENSOR DOES NOT DETECT HEAT OR DRIED CLOTHES IT WILL CONTINUE TO RUN FOREVER.
NEXT AS FOR UR NO HEAT:
ELECTRIC Dryer no heat or little heat, or shuts down to fast:
Check your venting and lint basket. Check blower for lint build up and blower wheel obstruction., test by trying to turn the wheel manually by hand (should be easy) May have to remove cabinet or front/back plate to get to it)
Next check the heating element itself with a meter for continuity OHMS CLOSED CIRCUIT. If not its defective or has a short if its grounding out? Which in turns causes blown fuses or thermostats or overheating.
Check dryer Terminal block prongs both outside prongs should give combined 220, and 110 each if u check 1 outside & 1 center (ground) prong. Also check house electrical outlet for full voltage. 220 because if u only get half or 110 volts you will be able to run the machine which uses only 110 to run motor but not the heater which uses a full 220,
Check the thermal cut off, the cycling and the hi limit thermostats.
For continuity or OHMS. If no ohms or resistance they need replacement.
In some dryer's the control panel relies on a thermistor rather than a CYCLING thermostat to regulate the drum's air temperature by monitoring the component's resistance changes; resistance goes down as temperature increases and up when temperature decreases. Once the drum's air temperature reaches a certain level required to dry clothes, the control panel shuts off the heater. The panel will turn the heater on again and begin another heating cycle when the thermistor indicates that more heat is needed to keep the air temperature constant inside the drum
Lastly check your moister sensor. ( located inside the dryer door usually) Especially if machine seems to shut down early and clothes are still wet.
Test with a meter at room temperature and it should show continuity.
A failed moisture sensor will affect the dryer run time in the automatic moisture sensing cycle but it will not affect the heating of the dryer or the timed cycle. Which are reflected by the thermostats.
Read more :http://www.ehow.com/info_12203962_check-dryer-thermistor.html
SOURCE: Dryer shuts off after a few minutes
THE KENMORE DRYER I HAVE... IF REN IN THE COTTON CYCLE IT WILL RUN FOR 50 MINUTES AND SHUT OFF. ITS BOLWING HOT AIR AND THE OTHER CYCLES SEEM TO WORK FINE WITH OUT SHUTING DOWN SO ID APPRECIATE A TIP ON WHAT THIS PROBLEM COULD BE
SOURCE: Gas dryer continues to run on the Auto cycle.
try to get the manual for the dryer you got and locate the moisture sensor if this sensor is bad what happen is that the automatic timer thinks that the clothes still wet and continues to dry once the sensor detects no moisture then it shut off the dryer normally is located behind the dryer on the exit line of the air duct and tested for conductivity and see if is good or not
SOURCE: heat runs ten minutes than heat shuts off continues to run
I'm thinking the thermostat has failed, it get's too hot and the emergency over temp sensor kills the flame before a fire is started.
SOURCE: Kenmore gas dryer heats for several minutes ,then goes cold
I'm haveing the same problem with my frididaire gas dryer. I replaced the ignitor and cleaned the inside parts with a vacume and still having similar problems as yours. I think I will replace the temp. sensor that is attached to the flame tube inside the dryer next. To gain access to the inside parts you will need a putty knife to release the top panel. Just slide the putty knife along the top seam in front of the drryer. There are 2 clips that realease the top peice. With the top lifed up you will see 2 phillips head screws attaching the front panel to the dryer. Remove those screws and lift upwards and the front panel will lift right off the unit.carefully place the front panel to the side without damageing any wires attached. Then all your gas assembly parts will be visable in the bottom left cornner of the unit.
hope this helps,
SOURCE: Kenmore electric dryer Model 63932:
The motor relay is probably shot.
If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61
Hi,
If you are having problems with your gas dryer not heating the most common problem is that the ignitor goes bad. Even though it glows sometimes 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 different things that can go wrong causing the dryer not to heat.
check out this electric no heat tip...
heatman101
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