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I have a dryer that about 12 yrs old. It has auto dry control. The dryer does dry the clothes; however, if the setting is for the permanent press or the auto dry cycle the dryer timer control knob does not move.The only time the control knob moves is when it is set on the timed cycle. (60 min). Any suggestions? I do not know the model #. I had to choose one from the list in order to process my request.. Where can I find the model number. (This dryer was purchased from someone who had just recently purchased it and could not find the manual)
This control could be the problem IF the blower wheel ain't stripped, the dryer is clean, and the duct work is free of air restrictions.It is located on the blower housing next to the fuse.
If the dryer is heating at all your exhaust where the dryer connects to the wall to the outside is the problem. Restricted or reduced airflow to the outside of your home is main cause of the situations you are describing. Clear the house exhaust and make sure your exhaust line on the dryer is not closed off also.
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Some of them timer can be oiled, (just a little zoom oil no wd-40) if it is real hard to turn, the knob can become cracked and the timer motor itself it may not have enough ump to move the gears and sometimes oiling the timer and moving it around many times loosens em up.
If your
dryer seems to run forever, it could be because of a clogged vent or
internal ductwork. Your dryer may have an automatic cycle that turns
off the dryer when the clothes are dry. It does this with a special
thermostat or moisture-sensing system.
Normally, this is what happens during an automatic cycle:
The thermostat tells the dryer to heat until the interior of the dryer reaches a pre-set temperature--say 135 degrees.
When
the dryer reaches the pre-set temperature, the thermostat tells the
timer to begin advancing. (If there's a moisture sensor, the timer
advances only if the moisture content of the clothing is low enough.)
The
timer advances until the interior cools, then the thermostat tells the
timer to stop advancing, and tells the dryer to start heating again.
This
cycle continues until the clothes are dry. But…if the vent is clogged,
the dryer may never reach the proper operating temperature, so it
doesn't send the signal to the timer and the dryer continues to run
indefinitely, even if the clothes are completely dry. To fix the
problem, clean the vent and/or internal ductwork.
If it works to begin with and fails afterwards then that can only be them solenoids mounted on the gas assembly. Here is my home video which shows how to check and replace:
Check the heat sensor in the auto setting it is usely on the drum that's what turns the dryer off when it is dry . The wet clothes get against it when they are dry it shuts off. Hope this helps
Most dryer timers are digital or mechanical. The timer controls
most of the operations of the dryer. For this
reason, any repairs to the timer should be made by a professional
service person. However, there are a couple of checks you can make when
you suspect the timer is faulty -- you may be able to install a new
timer yourself.
Step 1:
Unplug the dryer. To access the timer, remove the control knobs and
the panel that covers the controls. This may be a front panel, or
access may be through a panel at the back of the unit. Carefully
examine the wires that connect the timer to the other parts of the
washer. If the wires are loose or disconnected, try pushing them into
position; they usually fit into their terminals like plugs. Use
long-nosed pliers to avoid breaking the wire connections -- never pull
a wire by hand.
Step 2:
To test the timer, use a VOM set to the RX1 scale. Disconnect the power
leads to the timer and clip one probe of the VOM to each lead. The VOM
should read zero if the timer is working. Since the timer is a multiple
switch, turn it through its cycle and test each pair of terminals in
turn. The meter should read zero at all of these points. If one or more
readings are above zero, the timer is faulty and should be replaced. Step 3:
To replace the timer, unscrew and disconnect the old one. Install a new
timer made specifically for the dryer. If there are many
wires on the timer, have a helper hold the new timer next to the old
one as you work. Disconnect the old wires one at a time, connecting
each corresponding new wire as you work, to make sure the connections
are properly made. Or, draw a diagram showing the connections before
removing the old timer. After all the wires are connected, check the
connections again for correctness and screw the timer assembly into
place.
could be your operating thermostat on your heater or your timer if it runs on timed dry but not auto dry then it is a thermostat issue if it just does not run at all then it is a timer issue also make sure your vent is clear check by removing vent hose from back of unit and running a load if it works properly clean your vent.
This is caused by the dryer vent being blocked and not allowing the moist air to be removed from the dryer. To confirm this. Dry a load of close in a timed dry setting. Set the time on a specific time and then start the dryer. Wait for about 5 min. See if the timer has moved. If it has then the problem is not the timer. It is the exhaust vent being plugged up somewhere. Moisture how the auto dry setting works. The dryer sences moisture and runs longer to dry your clothes. With the dryer exhaust vent blocked, wet moist air is comming back into the dryer and fooling the sensor into believing the close are not dry and runs for a very long time. It is not uncommon for this problem to cause a dryer to never shut off. Your dryer exhaust vent is plugged up with lint somewhere.
if you are using the auto dry setting and the dryer is still running after 5 hours you either have a timer issue or a thermostat problem.
The timer is driven by a motor, if the timer motor is bad the timer wont time out.
in the auto dry cycle the thermostat has to cycle off and on which then sends power to the timer again advancing the timer.
set the timer in a timed dry cycle for say ten minutes, if the timer advances and turns off then you know the timer works. if it doesnt advance you have a timer motor issue,
if the problem is the auto cycle, you could replace the thermostat, about $20 american. however a clock timer would be cheaper.
Based on how old is your machine and do you want to stick a timer in it after already paying the service man is up to you.
A basic bath towel load should be dry in about 50 minutes, this varies on how good your seals are and how long a vent you are running, if the dryer vent was plugged you already have shortened the life of your heating element.
It sounds like a timer problem since it happens during timed also. Some dryers don't have an actual moisture sensor for auto dry. They work by knowing that as long as the clothes are wet the temp won't go past a certain point. As the clothes dry it trips a thermostat that lets the timer advance. Until this is fixed DON"T trust the timer to shut off the dryer. Sometimes it won't or could leave the dryer running for hours. This has nothing whatsoever to do with fuses. There are no fuses in a dryer. Just high limit thermostats and other devices that will shut off the heat but usually not the motor.
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