I have an Asko T700 dryer which is working fine except tripping after half or less of drying time. I can reset and it dries for a while longer, usually tripping again. I have cleaned out the lint and replaced the vents leading from the dryer. I notice that the back of the dryer gets quite hot before tripping. Can you suggest what part might not be functioning properly?

Hello,

Welcome to FixYa.

Based on your description I`d direct you to first check the hi-temp cut out at the back...if you haven`t already.

It will look like this on the Asko dryers...



If you push this to reset and the unit works, great. I would keep an eye on it though since the hi-limit typically trips for a reason such as a plugged lint filter, plugged vent ot partially plugged or the heater itself is plugged up with lint.

Take the lint filter and clean it under some warm water and soap as they do become plugged with wax over time due to fabric softener and static sheets...when present/used regularly

If it doesn`t run after-wards or it`s not tripped, you`ll need to investigate for a faulty heater element. This is quite involved, so we`ll cross that bridge when you get there...if necessary.

Keep me posted on your progress or what you find and I'll help in whatever manner I can. Good luck.

Regards,

Macmarkus :)

Igreat answer above now here is a great video shows how it works and what to check

It is quite common for lint to cover the blower on these units, making it impossible for the dryer to move any air.

1)remove the lower panel. you will need a T20 driver for this and may need to tip the dryer slightly to the rear

2)remove the left part of the blower plenum. this is held by 3 plastic tabs and a T15 screw

You will now see the blower wheel, it is a squirrel cage type. Check for lint buildup, broken vanes, or string/thread wrapped around the shaft.

if there is no problem with the blower then there is another reason you are not moving air. let me know if this helps

Common problem.
You probably need to clean
your dryer vent. Dryer vents
should be cleaned every couple of years to
prevent them from being clogged with lint. You can check the air-flow by going outside where the vents terminate. What's probably happening is on sensor dry, there's a moister sensor that tells the machine to shut off when there's no moister. The hot is is being pushed back into the dryer and confusing the sensor. That's why it's working on timer dryer because that option bypasses the moisture sensor.

I'm pretty sure that's it. Good luck.

Try washing both lint screens with soap and water and letting them dry.

Update: The dry cycle is now working! Apparently the automatic overload/shut off on the heating element got tripped. We had a technician out this morning. He unplugged the machine, removed the top of the unit, and simply pushed a little red/orange button that was on top of the heating element. When we plugged it back in the heating element worked again. The technician was able to troubleshoot this by checking the amps while running the dry cycle. But the proof was really when we did a load and the machine heated up (just like it used to) during the dry cycle. This was actually a relatively simply fix - though could be dangerous as you have to open up the electrical area. The reset button is rather inconspicuous and located on top of the heating element, which is long (runs front to back in the center part of the top of the machine - which you can get to by removing the lid/top outer housing) and silver - wrapped in insulation. It's pretty obvious. The button is in a little metal fixture on top of the heating element. The technician told us that the rest can get tripped when the unit overheats. (We think this happened when the laundry tub overfilled and the hose was totally submerged - the machine was working overtime to pump out the water.) The technician also warned that this can happen if the machine gets turned off suddenly mid-cycle - especially during the drying cycle. He said that the heating element gets so hot, it needs to have a gentle cool down period, which is marked on the dryer dial for the last 20 minutes of the cycle. I hope this helps others!

There's a reset button on the back of the dryer. It's a small black kinda rubber button about half way down the back panel near the center. push that button to reset it. should do the trick.

TRY DISCONNECTING THE EXHAUST FROM THE BACK OF THE DRYER AND RUN ONE LOAD THROUGH IT. IF IT DRIES O.K., THEN YOU HAVE A RESTRICTION IN THE DUCT WORK.

check to see if the fans are loose if so replace them this will also cause poor drying time.iI find its better to dismanttle these dryers and check the rollers,belt and jockey pulley at the same time.they look hard to work on but they are easy just take you time theres generally no wires to undo.

If you are using dryer sheets in the machine the filter screen may be plugged and will have to be cleaned. You can check it by placing a bit of water on the screen if it beads and does not flow through then the screen is indeed plugged reducing air flow. There could be lint and build up in the dryer's internal ducting and sensors, the machine will have to be disassembled for a complete cleaning this will also reduce air flow and cause the machine to heat abnormally.