Dryer not working properly

Please start with your clothes after the washer finishes it's washing cycle.
Take them out and see how dry they are.
They should be nearly dry.
If not, perhaps the reason you are having problems is they are too wet to begin with for the dryer to properly do it's job..
This is not a rare problem.
One possible reason for the clothes not to be dry when the washer finishes is a loose or worn out belt under the washer.
Another problem some washers have, particularly washer/dryer combos, is that they are sometimes not very effective.
In that case, either smaller loads or rerunning the spin cycle at the end of the washing cycle might help you.
God bless your efforts.

The first thing you need to check is your vent system. If your dryer vent is clogged with lint, the dryer has a hard time expelling the moisture.
Then, if the vent is clean, try using a timed drying cycle instead of a sensor cycle. If your clothes get dry using the timed cycle, then you might have a sensor problem.
Also, make sure your wash machine is properly spinning out the clothes. I saw that once before where the customer thought the problem was with the dryer, but it ended up being their wash machine's ATC switch adding water at the end of the spin cycle.

Good luck!

Check your dryer vent (probably outside) to be sure something or a kid hasn't flattened it, making it not vent moisture properly. Replace the vent or pull it back out so the damper door will open.

Whilst 'combos' will 'wash' a full load of clothes, they are not so good at 'drying' a full load. Since there must be a 'tumbling space' inside of the drum, into which the clothes can fall during the drying cycle.
In a 'nutshell' one 'wash load' equals 'two drying loads',
That's the price you pay for having a space saving 'combo' machine instead of having a 'washing AND a drying machine.
Add to that the fact that most 'combos' are 'condenser driers', as opposed to 'free flow outlet driers',
.
The consequence is that it takes far longer to 'wash and dry' a load of clothes in a 'combi' as oppose to two separate machines

If you are experiencing longer dry times and/or poor drying efficiency, the following link can give you some tihings to check before assuming there is a malfunction with your dryer:

http://www.fixya.com/support/r3578821-dryer_takes_too_long_to_dry

The number one cause of dryer heat related problems is poor exhaust ventilation. If not vented properly, a dryer will not dry efficiently, will take longer than required to dry, and will cause the heating circuits to overheat to the point of failure. The dryer will actually seem hotter as the heating circuits begin to overheat. This is also the source of many fire hazards if not resolved. Read through the link provided and review some of the potential causes. Hopefully, this may save you a service call. If you check everything and still have poor heating issues, please let me know. You may have an internal bias or hi-limit thermostat malfunctioning.

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.

This sounds like a motor control board is faulty. Please load a couple of towels in the machine run it. Watch the machine as it goes through its' cycles.

1. Do the towels tumble when the machine is washing ?
2. When it begins to spin, does it spin one way at a fast pace or does it spin one way and then the other ?

Answering these two questions will help in troubleshooting your problem.

washer dryer and dryer ony machines differ in a huge way. the big diff. is the drums on each are completly different sizes. the conventional dryer has the bigger, giving better air flow and tumble to clothes. the w/d has a smaller drum thus less air flow and less tumble between clothes. the best way to see this effect is remove half the clothes after a wash and then select a drying cycle. u will see that by giving the clothes more room to tumble free of each other rather than tumbling in a large ball will dry them. washer dryers are really only a marketing tool.
(ex main brand engineer)

this will be a problem with your thermostats 1 of them will have a thermal cut-out switch built onto it this thermostat needs replacing it is faulty