How do I clean the lint from inside the kenmore elite dryer exhaust

This would indicate you have a lint build up somewhere in your exhaust system. The best way is to disassemble the unit and completely clean the unit. Also remove the exhaust hose and make certain it is clear all the way through and that the exit door is not blocked closed or plugged inside. I normally do this annually and then use a long brush to clean monthly to maintain a safe, functioning unit.

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
the filter.
Make sure the filter is completely dry before
reinstalling it and using the dryer.
NEVER operate the dryer with a wet lint filter.

Professionally Dryer need to be taken apart some.
by removing front of dryer and removing inner tub
.having a good shop vacuum. and a paint brush .We have a service and charge $65 come out and clean dryer and venting.
heavy lint build up in dryer normally means improper venting.
all domestic dryer venting should never go over 8 ft vertical venting the less turns the better and if vent go's up you need induced venting another fan to help dryer push air Sears website will have brake down on your dryer not a hard job if your good with tools

don't know if you already had this fixed,usually this is caused by not having your dryer cleaned out,the lint builds up inside the duct that the lint filter slides down into and has to be removed and cleaned out.also in some of the kenmore dryer ducts there's a metal clip inside the duct that can come loose and hold the lint filter up.these are the two most likely causes for this to happen.

sounds as if your exhaust/air exit/lint thorough fare may be plugged-blocked or building up thus holding moisture in unit, You may wish to use a shop vac hose hooked to exhaust side of vacumn to force air thru lint clean out after removing lint screen and/or also make sure dryer has not been forced back into the wall thus crimping exhaust chute and perhaps check outside to see if exhaust vent flapper chute is clear of obstruction and also opening as dryer runs, Good Luck and keep an eye out-fire hazard if dryer overheats and is actually a blocked exhaust, take care.

There is a moister sensor in your dryer that detects any lint build up inside the exhaust vents. If any obstruction is inside the exhaust tubes this sensor will put the heat in the check mode. Inspect and clean thoroughly and see if it will heat up again

Airflow through the dryer vent is restricted. Blow through the filter opening with a reversed vaccum cleaned. Set it BLOW instead of **** usually by putting the hose on the exhaust end.

If you wish to clean the interior cabinet of the dryer follow these steps:

1. UNPLUG the dryer. Dangerous voltages are still present even with the dryer turned off.

2. Open the dryer door and remove the lint screen. IMPORTANT: You must remove the lint screen first in order to remove the blower fan housing.

3. Remove the lower toe panel directly below the dryer door by removing the screws under the bottom front edge of the panel. With the screws removed, the panel will drop down, then come off. NOTE: For better access, you can prop the front feet of the dryer up (a 2x4 works well).

4. Loosen the screws on the blower fan housing directly below the drum and remove. There's usually a small clip holding the cover in at the bottom that you may need to pull out to release. NOTE: You may also have to disconnect the auto dry sensor plug (yellow wires with white plug - use a small screwdriver to release the locking tabs) and/or ground wire to accommodate removal of the cover.

You should now have access to the dryer interior and the blower fan squirrel cage motor. Take the time to clean out the blower fan housing cover as well. A long bristle brush made for dryers works well at removing any lint inside the dryer in the hard to reach places, followed by vacuuming.

NOTE: After cleaning, you may experience a slight burning odor. This is normal as lint gets stirred up in the cleaning process and can settle on the heating components. The odor should dissipate after a short period of use.

If you have any questions, please let me know. I hope this helps you.

Sounds like a clogged exhaust duct or vent. If not venting properly, most dryers will turn the heat off, for safety reasons.
Go for the easy fix first. Before removing your exhaust ducts from the dryer, look for any kinks that may cause blockage. Clean out the duct of any lint or water that may have accumulated. Check the vent on the outside of the house and make sure that its not clogged and opening properly.

THE AIR FLOW THROUGH THE DRYER BEGINS UP THROUGH THE HEATER AND INTO THE DRUM THROUGH THE HOLES INSIDE THE DRUM TO THE LEFT IN THE REAR.
THESE HOLES ARE METALIC IN COLOR AND MAY SHOW SIGNS OF DISCOLORATION DUE TO THE HEAT OF THE HEATER ASSEBLY. FROM THERE, THE AIR WILL FLOW ACROSS THE CLOTHES AND THROUGH THE LINT FILTER.
IF YOUR LINT FILTER IS LOCATED ON TOP OF THE DRYER,
THE HOLES WILL BE IN THE BACK WALL OF THE DRUM ON THE RIGHT. IF YOUR FILTER IS LOCATED IN THE FRONT OF THE DRUM, THE HOLES WILL BE JUST BELOW IT.

USUALLY, LINT WILL COLLECT DOWN INSIDE THE SPACE WHERE YOU INSERT THE FILTER ON A FRONT LOCATION.
PULL THE FILTER OUT AND LOOK DOWN INSIDE. USE A CENTER CARDBOARD FROM GIFT WRAP TO CLEAN OUT THIS AREA. FLATTEN OUT THE CARDBOARD ROLL AND PUT IT DOWN IN THE SPACE ATTACHING THE OTHER END TO A VACUUM CLEANER HOSE.
ALSO, DISCONNECT THE DUCT WORK FROM THE REAR OF THE DRYER AND CLEAN OUT THE DRYER DUCT AND THE HOUSE HOLD EXHAUST DUCTING. WHEN REATTACHING THE FLEX DUCT TO THE BACK OF THE DRYER, MAKE SURE THERE ISN'T ANY EXCESS FLEX DUCT SNAKING BEHIND THE DRYER. CUT IT TO THE LENGTH NEEDED. MAKE SURE IT ISN'T FLATTENED BETWEEN THE DRYER AND THE WALL WHEN YOU MOVE THE DRYER BACK INTO PLACE.