Washer-dryer # wm3677HW will not dry,heats up, run, on and on

In order to dry cloths, you need two things, heat source and air flow. Sounds like you have heat but no air flow. If you can, pull unit out and check vent for washer. Look around unit and make sure there is nothing blocking any vents. If you don't see any thing, try drying with vent not installed. I run into a lot of homes with clogged vents inside walls. By drying with no vent installed, it might tell you if you have dryer problem or a home issue. Good Luck

dear its normal.... all the machine having 02 type of dry sis terms,,,your machine is condensation dry sisterm,,,,

check also the drain pump for obstruction inside.

Check the filter at the bottom left side of the washer. It could be plugged up with debris.
Hope this helps.

Instructions

1. Wait approximately 90 seconds for the light to turn off if the "Start/Reset" indicator light flashes. Press the "Start/Reset" button to restart the wash cycle.
2. Close the dishwasher door and move the latch to the locked position if you hear a beep once every 30 seconds when the dishwasher should be operating. The dishwasher will not operate if the door is open.
3. Turn on the hot water faucet and feel the water to check if it is hot. Wait for the water to warm up before running the dishwasher if the water is not hot. Check that you have proper water pressure and wait for the pressure to return to normal if it is low. Your dishes may not come out clean if the water is not the correct temperature or if you have low water pressure.
4. Move the dishes on the racks so that they do not block the detergent dispenser or washer arms on the bottom of the machine. The dishes will not come out clean if they block the detergent dispenser or the washer arms.
5. Load the proper amount of detergent in the dishwasher if you find spots or film form on your glasses. If you have hard water, use a rinsing product such as Jet-Dry in the dishwasher to clean the spots or film. If the problem persists, wash smaller loads of dishes.
6. Add only automatic dishwasher detergent to the dishwasher if you find excessive suds in the tub after running a cycle. Measure out the proper amount of detergent.
7. Press the "Heated Dry," "Hot Start," "Hot Wash" and "Added Heat" buttons, if you find that your dishes are not fully dry after a wash cycle completes.
8. Press and hold the "Heated Dry" button on the dishwasher for approximately three seconds if the control pad does not respond to button presses. This is the child lock that prevents unwanted use of the dishwasher.

Hello & Welcome to FixYa
If you have already tried cleaning the vent then the problem is with the Thermal fuse. When the thermal fuse goes bad it cannot be reset and replacing it is recommended repair.It is located on the blower wheel housing inside the rear panel to the exhaust duct. Please get back to me if you have any other questions.
Kevin

sounds like your heating element is not working prtoperly or you are not washing in very hot water stop washer in middle of cycle and open it if steam come out hot steam be careful keep face away when you open itif not hot that could be the problem,A appliance serviceman once told me if water is hot enough and end of wash and rinse cycle not to run the dry cyvcle just open dryer a few inches and let the steam out Run hot water over a plate or a pot and set it in the drain tray in your sink notice how fast it dries itself while draining in the tray very hot water in a dish washer dopes the same good luck with this problem I hope my advice helps you oh yes one more thing always run the hot water till it get hot before you turn your dishwasher on

The problem is likely due to lint build up in the condensing unit. I found a solution here:
http://www.motusconnect.com/blog/2009/1/5/lg-washer-dryer-drama-%E2%80%93-diy-fix

I also had a softball size ball of wet, packed lint in the condensing unit. I found that the unit can be cleaned without tools or dis-assembly by:

1. draining the water.
2. laying the washer on it's back.
3. removing the hose clamp on the rubber bellows that connects the drum to the condensing unit (right hand side of machine).
4. digging the lint wads out with your fingers and a small screwdriver.

Happy drying!

You have a problem with the condensing duct.  Possibly clogged with excess and lint and needs to be cleaned out.  This requires disassembly of the unit to get to it.  Not a difficult job but not easy.

no power to dryer