Question about Bosch Nexxt WTMC 6300 Electric Dryer

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E-01 error code

Service has been out several times. replaced all 4 sensors and board twice. Ducting in hard pipe to allow better airflow. Lint filter is and has been cleaned often. Sometimes code shows up while in cycle and continues to work through cylce (beeping frequently) other times it just shuts down. Of course when tech arrives, it works fine for a few cycles while he is here. Any thoughts?

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  • gapz May 25, 2008

    Having the same problem with a constant warning signal as is is continuing to dry. Then it stops and beeps the E-01 error code problem.

  • sth1 Jun 16, 2008

    also having the same problem. thought is was a lint problem but cleaned it out numerous times and still getting the E-01 error

  • bnbleier Feb 04, 2009

    I clean out the lint trap ALL the time, befor and after each use. Even took my vacuum cleaner and cleaned out the INSIDE of the lint trap. No use. I still get the error e01 code, and dryer shuts down 30 seconds into the cycle. Is it a sensor that needs to be replaced? Any thoughts or has anyone been able to fix this?

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Hi there,

i understand your frustration here.

the E01 code means there is reduced airflow through your dryer and therefore before it overheats and starts a fire, it shuts down.

replacing boards and sensors will not fix this problem as it has nothing to do with the electronics or electrical side.

here is what you can do yourself:

check the venting on the dryer.
the vent hose runs from the back or side to the wall of your house.
it may be clogged or kinked

if everything is fine, i would contact Bosch directly and see if they have a recall or any service reports on this problem and if there are any solutions.

let me know if i can be of more assistance.

thanks.

Posted on Sep 25, 2008

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Stop usign dryer sheets, as they clog the lint filter... Clean well and use liquid softner only.. Give it try you will be amazed that even BOSCH cant figure it out....Duh ! dryer sheets clog the filter...

Posted on Nov 14, 2008

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My cabrio dryer is overheating. I have replaced thermistor, thermostat, replaced control board but get f22 error code,


Dryers overheat because of reduced airflow. You need to fix that first. Remove the rear vent completely and check the hose for lint and birds nests. Check the flaps on the wall vent that they move freely. Then strip the machine down and clean all the ducting and the fan.

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http://www.shopyourway.com/questions/1146749

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Keep getting warning "check exhaust" on a new gas dryer. All exhaust is clear. What's going on?


The CHECK VENT duct blockage sensing system detects and alerts you to blockages in the duct work that reduce exhaust flow from the dryer. This light does not indicate any problems with your dryer. If this light blinks, it indicates that your home's exhaust system/duct work has a serious restriction

Every time the dryer is turned on, the CHECK FILTER LIGHT WILL BLINK, as a reminder to make sure the filter is clean. Always make sure the lint filter is clean before starting a new load; a clogged lint filter will increase drying times.

The Kenmore Elite dryer has a sensor that detects poor exhaust venting, and when it does, a light flashes on the control panel. This warning light does not include a mechanism to stop gas flow, but if it is allowed to flash for an extended period, poor venting may cause the dryer to overheat. As a result, a fuse might blow and disable the gas valve or ignitor. You can prevent this by diagnosing the reason for the flashing indicator light as soon as possible.

In many cases, LINT has built up somewhere in the exhaust pipes.

Check under the lint filter. Pull it out,look inside the slot it fits in, and clear all lint from this area.

Is it possible you have used the WRONG VENT MATERIAL?
Check your vent to make sure it is 4 inch rigid or semi-rigid metal ducting. If your venting is plastic or flexible foil, replace it before using the dryer.

Check your vent hood outside. You may have a restricted or damaged vent hood. It must be clean and free of lint buildup. Check the damper and make sure it opens fully and easily and is free of lint.

I know you said you have no elbows, but I have posted the pipe run lengths with and without elbows. Keep in mind this is with 4 inch rigid or semi rigid metal ducting.

Measure the length of your exhaust system and count the elbows. Use the chart below to see if your duct is too long. If it is too long, have the duct routed to another location that is within the venting guidelines.

0~90 degree elbows=65 ft of 4 inch rigid metal duct.
1~90 degree elbow=55 ft of 4 inch rigid metal duct.
2~90 degree elbows=47 ft """"""""
3~90 degree elbows=36 ft """"""""
4~90 degree elbows=28 ft """"""""

You should always use duct tape or metal tape on all joints, NEVER USE SCREWS, as screws capture lint inside the pipe.

One more note. Lots of people overlook the fact that fabric softeners can build up on the lint filter over time. This buildup can restrict the airflow through the filter reducing dryer efficiency and lengthening drying times. After removing lint, if the filter looks dark or dirty when held up to the light, follow these steps to clean:

Use hot soapy water and a stiff brush to clean
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Make sure the filter is completely dry before
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NEVER operate the dryer with a wet lint filter.

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I have a Kenmore Dryer (electric) which is almost 30 years old. Recently it simply stops after a few minutes sometimes 2 sometimes 15. In the past, I have had to tighten hinges on the door. But the...


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My dryer smells like it is on fire.


This is a sure sign you have airflow problems in your dryer.

1. Check all of the ducting from the lint filter.... all the way THROUGH the outside wall for signs of blockage / ANY lint build up.
2. Check airflow at the dryer exit by removing the duct connection. The airflow should push a relaxed hand away from the dryer vent connection.
a. If it does not do this the problem can be
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3) Area around lint filter blocked / restricted by lint
4). Broken blower wheel.

Until you resolve this problem: I highly recommend you stop using your dryer as it really can catch fire.

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First check your venting if all is clear. If so it is probaly the dryer coils they tend to fail as they heat up.
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This is going to sound like an owners manual but here goes:

1. Keeping the lint filters clean after each load is every important.
a. if you use dryer sheets (bounce etc) you should clean you lint filter with vinegar about every 90 days. The material from the dryer sheets collects on the lint filter. It will appear clean but will restrict airflow.

2. All air passages must be kept clear:

a. Around the lint filter (look deep and hard) clean with crevice tool

b. At the rear connection of the dryer check the vent ducting for obstructions. It can appear clean yet have a caked build up inside the ducting that restricts airflow.

c. The through the wall vent ducting flapper.

Other than the lint filter the is the leading cause of ducting restrictions. Lint can build up on BOTH sides of the flapper so it keeps it from fully opening or closing and restricts airflow.

Thermistors are there to prevent your dryer from burning down your home. The thermistor is doing its job.

Sorry for sounding like an owners manual / user guide but everything above I see over and over and over..... and over. People say the ducting lint filter and thru the wall vent are clear... Yet I go out there and they pay me to prove them wrong.

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Kelly

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Hi and welcome to FixYa. I am Kelly.

When a dryer runs for around 30 minutes and shuts off it has reached the maximum operational temperature allowed and is most likely being shut off by the high limit thermostat. This is a safety feature built in to keep from causing a fire due to over heating.

This overheating condition is usually caused by lint buildup in the following areas.

1. The outside dryer vent exit is blocked with lint
2. Flexible vent ducting has lint build-up inside
3. The lint filter in the dryer is restricting airflow
4. The lint filter trap area has a build up of lint restricting airflow across the lint filter.
5. The blower fan / blades / ducting have a lint build up causing low air flow.

Do a tedious insepction for lint buildup and all of the ducting areas that you have access to without disassembly.

Make sure to clean as much of the lint out of the areas that you can see. In the process of cleaning DO NOT use sharp objects to try and free the lint.
If you have to... sacrifice a coat hanger and bend it in half so that it is U shaped to assist you in clearing the lint in stubborn areas.

If you really want to quickly rule out the outside ducting... you can disconnet the Vent hose / duct from the rear of the dryer and then dry a load of clothes. If it does not shut off you know that your external ducting is where the problem lies. Just make sure to reconnect the vent / hose ducting after the test. (Over time can make a large lint mess)

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