Must let dryer cool down before it works again

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

Check your lint filter, exhaust duct, and check if duct flapper is opening fully or not. Allow some time between loads and don't stuff too many clothes.

From the document I see, it is only a matter of pressing the "Dry" button. This is from the manual, available at http://www.lg.com/us/appliances/washer-dryer-combos/LG-WM3431HW.jsp and selecting the "Support" tab. On the right, there will be a "Washer/Dryer Combos Manual" link, which will download to your computer. Listed under "Dry" in Section 9 is the following.
• Drying options are easily selected with the Dry button. • For most even drying , make sure all articles in the clothes load are similar in material and thickness. • Do not overload dryer by stuffing too many articles into drum. Items must be able to tumble freely • If you open door and remove load before dryer has finished its cycle, remember to press the Start/Pause button. • By pressing the Dry button, you can select "Normal" - "More" - "Time" - "Off" - "Low Temp" - "Less" • Your dryer can handle a load of up to 9 lbs. (4 kg) dry weight of articles. • When drying cycle is completed, [Cd] (Cool Down) is displayed on the Multi display. • Cool Down is set automatically when the drying cycle is complete. • If clothes are not removed promptly when the drying cycle ends, wrinkles can form. • The Cool Down feature periodically tumbles, rearranges and fluffs the load to avoid wrinkles for up to 4 hours. • The message [Cd] will continue to display until the clothes are removed or the Start/Pause button is pressed
Hope this solves your problem. I highly recommend downloading the users manual, it is a wealth of information and will prove useful in many circumstances.
Please rate and comment Thank You Joe

Hi,

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heatman101

Your two issues may be related. A combo washer / dryer uses a fine spray of cool water to condense moisture out of the air stream while drying. This water is then pumped down the drain. Cold water is also used to fill the softner dispenser. If the inlet screen on the cold water connection to the machine is restricted, those are two of several things which could show up. Turn cold water valve supplying water to machine off. Unscrew cold water fill hose from machine. Remove screen from inside machine, clean, re-install, re-attach cold water fill hose, turn cold water valve back on and see if performace improved.

This problem may be the result of a dirty lent filter which if clogged will short cycle the dryer and the clothes will still be damp when done. Also a dirty exhaust pipe (usally 4") will prevent the clothes from drying correctly. Make sure that the air is leaving the machine. To do this you have to go outside when the machine is running.

Sounds like the drain hose for the washer is too far down in the stand pipe at the wall causing a siphon effect, try raising drain hose a little. The dryer sounds like the vent line from back of dryer too wall is pinched causing an air flow obstruction. Hope this helps.

is your dryer a conderser type
does it have a tank that you have to empty at the end of cycles
if it does the filter that condensers the water from drying cycle
if that is blocked it will not work

Jirina, first check to make sure that both the hot and cold water valves are turned on. If that's ok, check to make sure the lid switch is being actuated. Check those first...Catriver.

The cold water feeds for condenser cooling and for wash cycle drum fill are controlled by separate solenoid valves (manifolded together at the cold water inlet hose union). When the solenoid on my condenser coolant valve failed a couple of years back, I got symptoms like yours. A new pair of valves isn't expensive to buy and is a trivial job to fit. If this is what has been happening, suggest you also inspect the insides of your dryer fan and of the pump - neither of mine took really kindly to having been cooked for hours on end. Alastair.