Time skips from 18 minutes to 6 minutes on automatic mode

make this test: God bless you

- 45 -
Service Test Mode
The dryer control has a service test mode that can be utilized by the service technician in order to test
critical components and to access error codes. This test mode will help the service technician to quickly
identify failed or improperly operating dryer components.

Test Mode Description
t01 Model ID Verifi
es (or sets on new board) the proper model id.
t02 Error Codes Lists up to 10 control-detected problems.
t03 Software ID
Displays the software version number and the non-
volatile memory version number.
t04 Program Non-volatile Memory Test Control computes and compares the 16-bit CRC of
the non-volatile memory with the pre-computed
version stored in the non-volatile memory.
t05 User Interface Control turns on all LEDs and the 7-segment display.
t06 Keys Continuity Verifi
es that all displays and buttons work.
t07 Outlet Thermistor Displays outlet thermistor temperature.
t08 Inlet Thermistor Displays inlet thermistor temperature.
t09 Moisture Sensor Displays voltage read from the moisture sensor.
t10 Exhaust Detection Verifi
es status of the exhaust system.
To enter the test mode: To exit the test mode:
Disconnect the power for 30 seconds.
Reconnect power and within 30 seconds of
reconnecting power:
Press signal button.
Press delay start button.
Press signal button.
Press delay start button. (Displays t01)
1.
2.
a.
b.
c.
d.
Press the power button during the test selection
mode.
Note:
A dryer left in the test mode will exit the test
mode after a period of 30 minutes

clean the stainless steel sensor pads located just inside the dryer door with isopropyl alcohol,these sensors register moisture in the garments and adjust drying times accordingly,when you use dryer fabric softener sheets it coats these sensors and throws the system off,make sure to shut off power to unit as this alcohol is very flammable,then leave door open to air out before re-powering up unit

Check you venting. Sounds like it it stopped up with lint, etc. The vent starts at the connection in back of the dryer where the 4" flex hose connects to the dryer all the way to the outside of the house. Hope this helps you.

The valve resistance is 1995 ohms and the ignitor is 185.
*******************************************************************
Inspect the dryer venting from the rear of the dryer to the outside vent hood of the home.
If there's a restriction in the vent--the clothing in the dryer takes longer to dry.
When the dryer is functioning normally---the time required to dry laundry is determined by the *Sensor* located on the drum side of the lint filter housing and by the main control board.
When laundry is near dry--any Time Remaining on the control panel that is *not* needed will be eliminated---except for the last 6 minutes.
The final 6 minutes of any automatic cycle is for cooling down the laundry before the dryer ends the cycle.
If a dryer *counts down* to the last 6 minutes but the laundry is still not dry--the computer will allow the dryer to run until the laundry has dried or defaults (not drying within the additional time allowed).
Dryer vents that are longer than 8 feet with more than (2) 90 degree turns--can affect drying performance.
Setting the DRY LEVEL selector to *Very Dry* will solve most dryability issues. In homes with abnormally long vents--even the longer run time in the *Very Dry* setting is usually not sufficient to dry laundry loads.
Reducing the length of the vent or starting a second cycle becomes necessary to fully dry the clothing.
If a second cycle was started---only the amount of time that is needed to dry laundry will be used before dropping to 6 minutes and then the cycle will end with dry laundry.
*****************************************

LG gas dryers are more sensitive to venting length and air flow resistance. The gas burner can cause a rapid increase in temperature compared to an electric burner.
Rapid temperature rise in a gas dryer leads to premature burner shutdown (longer time required to dry laundry).
The gradual temperature increase of an electric element is more "forgiving" in homes where the dryer venting is less than ideal.
*******************************************

Problem:
The dryer has an auto dry feature which never fully dries the clothes so we wind up manually setting the dry time to an hour
Solution:
LG gas dryers are VERY temperamental in long vent set-ups. If fabric softener sheets are used in the dryer--clean the two stainless steel strips of metal on the lint filter housing with a SCOTCHBRITE PAD--scrub back & forth several times to remove the waxy residue from the fabric softener sheets. Most,if not all manufacturers do *not* recommend using sheets in dryers that have a moisture sensor (electrodes).
However--using a SCOTCHBRITE pad keeps the wax off those sensors which can be seen if looking *into* the dryer drum and at the lint filter housing.
If only *liquid* fabric softener is used in the washer--clean the dryer sensors once a month. Liquid softener also contains wax which can slowly accumulate on the dryer sensors from the laundry washed in the washer.
***************************************************************
Hold down on the 'More Time' and 'Less Time' buttons and press the 'Power' button. if it comes up with tE1 or tE2 you have a thermistor error.

LG DRYER MANUAL

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

The valve resistance is 1995 ohms and the ignitor is 185.
Inspect the dryer venting from the rear of the dryer to the outside vent hood of the home.
If there's a restriction in the vent--the clothing in the dryer takes longer to dry.
When the dryer is functioning normally---the time required to dry laundry is determined by the *Sensor* located on the drum side of the lint filter housing and by the main control board.
When laundry is near dry--any Time Remaining on the control panel that is *not* needed will be eliminated---except for the last 6 minutes.
The final 6 minutes of any automatic cycle is for cooling down the laundry before the dryer ends the cycle.
If a dryer *counts down* to the last 6 minutes but the laundry is still not dry--the computer will allow the dryer to run until the laundry has dried or defaults (not drying within the additional time allowed).
Dryer vents that are longer than 8 feet with more than (2) 90 degree turns--can affect drying performance.
Setting the DRY LEVEL selector to *Very Dry* will solve most dryability issues. In homes with abnormally long vents--even the longer run time in the *Very Dry* setting is usually not sufficient to dry laundry loads.
Reducing the length of the vent or starting a second cycle becomes necessary to fully dry the clothing.
If a second cycle was started---only the amount of time that is needed to dry laundry will be used before dropping to 6 minutes and then the cycle will end with dry laundry.
*****************************************

LG gas dryers are more sensitive to venting length and air flow resistance. The gas burner can cause a rapid increase in temperature compared to an electric burner.
Rapid temperature rise in a gas dryer leads to premature burner shutdown (longer time required to dry laundry).
The gradual temperature increase of an electric element is more "forgiving" in homes where the dryer venting is less than ideal.
*******************************************

Problem:
The dryer has an auto dry feature which never fully dries the clothes so we wind up manually setting the dry time to an hour
Solution:
LG gas dryers are VERY temperamental in long vent set-ups. If fabric softener sheets are used in the dryer--clean the two stainless steel strips of metal on the lint filter housing with a SCOTCHBRITE PAD--scrub back & forth several times to remove the waxy residue from the fabric softener sheets. Most,if not all manufacturers do *not* recommend using sheets in dryers that have a moisture sensor (electrodes).
However--using a SCOTCHBRITE pad keeps the wax off those sensors which can be seen if looking *into* the dryer drum and at the lint filter housing.
If only *liquid* fabric softener is used in the washer--clean the dryer sensors once a month. Liquid softener also contains wax which can slowly accumulate on the dryer sensors from the laundry washed in the washer.

LG dryer manual

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

You may need to adjust the air flow on your dryer vent.
When an LG dryer is functioning normally---the time required to dry laundry is determined by the *Sensor* located on the drum side of the lint filter housing and by the main control board.
When laundry is near dry--any Time Remaining on the control panel that is *not* needed will be eliminated---except for the last 6 minutes.
The final 6 minutes of any LG automatic cycle is for cooling down the laundry before the dryer ends the cycle.
If a dryer *counts down* to the last 6 minutes but the laundry is still not dry--the computer will allow the dryer to run until the laundry has dried or defaults (not drying within the additional time allowed).
Dryer vents that are longer than 8 feet with more than (2) 90 degree turns--can affect drying performance.
Setting the DRY LEVEL selector to *Very Dry* will solve most dryability issues. In homes with abnormally long vents--even the longer run time in the *Very Dry* setting is usually not sufficient to dry laundry loads.
Reducing the length of the vent or starting a second cycle becomes necessary to fully dry the clothing.
If a second cycle was started---only the amount of time that is needed to dry laundry will be used before dropping to 6 minutes and then the cycle will end with dry laundry.
*****************************************

LG gas dryers are more sensitive to venting length and air flow resistance. The gas burner can cause a rapid increase in temperature compared to an electric burner.
Rapid temperature rise in a gas dryer leads to premature burner shutdown (longer time required to dry laundry).
The gradual temperature increase of an electric element is more "forgiving" in homes where the dryer venting is less than ideal.
*******************************************

Problem:
The dryer has an auto dry feature which never fully dries the clothes so we wind up manually setting the dry time to an hour
Solution:
LG gas dryers are VERY temperamental in long vent set-ups. If fabric softener sheets are used in the dryer--clean the two stainless steel strips of metal on the lint filter housing with a SCOTCHBRITE PAD--scrub back & forth several times to remove the waxy residue from the fabric softener sheets. Most,if not all manufacturers do *not* recommend using sheets in dryers that have a moisture sensor (electrodes).
However--using a SCOTCHBRITE pad keeps the wax off those sensors which can be seen if looking *into* the dryer drum and at the lint filter housing.
If only *liquid* fabric softener is used in the washer--clean the dryer sensors once a month. Liquid softener also contains wax which can slowly accumulate on the dryer sensors from the laundry washed in the washer.

LG DRYER SERVICE MANUAL

LG PARTS


If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

Inspect the dryer venting from the rear of the dryer to the outside vent hood of the home.
If there's a restriction in the vent--the clothing in the dryer takes longer to dry.
When an LG dryer is functioning normally---the time required to dry laundry is determined by the *Sensor* located on the drum side of the lint filter housing and by the main control board.
When laundry is near dry--any Time Remaining on the control panel that is *not* needed will be eliminated---except for the last 6 minutes.
The final 6 minutes of any LG automatic cycle is for cooling down the laundry before the dryer ends the cycle.
If a dryer *counts down* to the last 6 minutes but the laundry is still not dry--the computer will allow the dryer to run until the laundry has dried or defaults (not drying within the additional time allowed).
Dryer vents that are longer than 8 feet with more than (2) 90 degree turns--can affect drying performance.
Setting the DRY LEVEL selector to *Very Dry* will solve most dryability issues. In homes with abnormally long vents--even the longer run time in the *Very Dry* setting is usually not sufficient to dry laundry loads.
Reducing the length of the vent or starting a second cycle becomes necessary to fully dry the clothing.
If a second cycle was started---only the amount of time that is needed to dry laundry will be used before dropping to 6 minutes and then the cycle will end with dry laundry.


LG gas dryers are more sensitive to venting length and air flow resistance. The gas burner can cause a rapid increase in temperature compared to an electric burner.
Rapid temperature rise in a gas dryer leads to premature burner shutdown (longer time required to dry laundry).
The gradual temperature increase of an electric element is more "forgiving" in homes where the dryer venting is less than ideal.

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

This is a problem I've seen before, or something similar. I think you've got a bad connection on the neutral wire. Either in the plug or at the panel. Have electrician check the neutral wire back to the panel from the plug.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c

“E2” flashes if the thermistor has shorted.

The thermistor monitors the exhaust temperature
and cycles the high-limit thermostat on
and off to maintain the desired temperature.
1. Turn the dryer off but keep the electrical
supply connected.
2. Make sure that the dryer is empty and that
the lint screen is clean.
3. Close the dryer door.
4. Select Heavy Duty, Timed Dry, More Time
or Less Time, End of Cycle Signal (Louder)
and Start.
5. If error codes E1 or E2 flash on the display
after 1 minute and the dryer turns off,
the thermistor, or the wire harness, is either
shorted or open. Check the wire connections
at the thermistor or the machine
control electronics board. If wiring checks
okay, replace the thermistor.
6. If the dryer seems to operate normally, remove
the exhaust vent and start the dryer.
7. Select the desired temperature cycle to be
tested, and select 20 minutes of Timed Dry
heat using the More Time or Less Time
pushbuttons.

This is some basic info I could find on your dryer. I will need you Serial Number in order to determine the year it was produced. Please post back with comments and let me know.


Whirlpool Duet GEW9250P 7.0 Cu. Ft. Super Capacity 8 Cycle Front Load Electric Dryer With AccuDry Sensing System. Dry clothes in the time it takes to wash them. The dryers uses AccelerCare™ technology to work just as fast as the washer (Up to a 9 lb. load), giving you more time to enjoy all the good things you've worked hard to achieve.
AccuDry™ Sensing System - Monitor remaining moisture and automatically stop the cycle when the load is dry, with the AccuDry™ sensor. Reduce overdrying and save time and effort, by not having to return to the dryer to re-check progress.
Senseon™ Drying System - Moisture-sensing strips and temperature sensors inside the dryer drum monitor how fast the load is drying, how hot the air should be and when clothes are dry. The system automatically stops the cycle to help save time and prevent overdrying. Senseon™ technology safely dries clothes faster than it takes to wash them.
Wrinkle Shield™ Plus Feature (120 Minutes) - The Wrinkle Shield™ Plus option automatically tumbles the load without heat to help prevent wrinkles from forming.
Whirlpool brand offers an ergonomic solution for its front-load washers and dryers to help reduce bending, stooping, or arching. Based on your height and laundry room needs, optional 10 in. and 15.5 in. pedestals make loading, unloading, and filling the dispensers easier. The 15.5 in. pedestal doubles as a storage drawer with a convenient sliding shelf to support your laundry basket.


Item Features:

• Super Capacity Plus - 7.0 Cu. Ft.
• AccuDry™ Sensor
• Senseon™ Drying System
• 8 Automatic Cycles
• Bulky Items Cycle
• Adjustable End-of-Cycle Signal
• Wrinkle Shield™ Plus Feature (120 Min.)
• 5 Temperature Selections
• Quiet Dry Plus Noise Reduction
• Dry Rack
• Reversible Side-Swing Door
• Dryer Door Window
• Reversible Side Swing Door
• Electronic Controls
• Front-Mounted Lint Screen
• Interior Drum Light
• 4-Way Venting
• Porcelain SpillGuard™ Top
• Optional Storage Pedestals Available
• Stackable Installation with Matching Washer
• Matches Duet® Washer

Specs:

• Warranty: 1 Year Parts & Labor
• Capacity: 7.0 Cu. Ft.
• Dimensions (HxWxD): 38 in. x 27 in. x 31 1/2 in; Depth with Door Open - 51.5"
• Construction: Front Access, Reversible Side-Swing Door Style, Powder Coat Drum Material, Dry Rack, Extra Large Front Mount Lint Screen, Power Cord & Venting Accessories, Stackable
• Controls: Electronic Controls
• Electrical Requirements: 30 Ampere, 120/240 Volts, 60 Hertz (1/second). AC-ONLY. USE COPPER WIRE ONLY. A FOUR-WIRE OR THREE-WIRE, SINGLE PHASE ELECTRICAL SUPPLY REQUIRED. A TIME-DELAY FUSE OR CIRCUIT BREAKER AND SEPARATE CIRCUIT IS RECOMMENDED.

You can get an owner's manual replacement for your dryer at laundrymanuals.com. I believe there is a membership fee for the website, however. I hope this info helps you.