Kenmore-Elite-HE3-Dryer-Tech-Sheet.pdf

WARNING

Electrical Shock Hazard Disconnect power before servicing.

Replace all parts and panels before operating.

Failure to do so can result in death or electrical shock.

IMPORTANT

Electrostatic Discharge (ESD) Sensitive Electronics

ESD problems are present everywhere. ESD may damage or weaken the machine control electronics. The new control assembly may appear to work well after repair is finished, but failure may occur at a later date due to ESD stress.

• ■ Use an anti-static wrist strap. Connect wrist strap to green ground connection point or unpainted metal in the appliance OR - Touch your finger repeatedly to a green ground connection point or unpainted metal in the appliance.
• ■ Before removing the part from its package, touch the anti-static bag to a green ground connection point or unpainted metal in the appliance.
• ■ Avoid touching electronic parts or terminal contacts; handle machine control electronics by edges only.
• ■ When repackaging failed machine control electronics in anti-static bag, observe above instructions.

DIAGNOSTIC GUIDE

Before servicing, check the following:

• ■ Make sure there is power at the wall outlet.
• ■ Has a household fuse blown or circuit breaker tripped? Time delay fuse?
• ■ Is dryer vent properly installed and clear of lint or obstructions?
• ■ All tests/checks should be made with a VOM (volt-ohm-milliammeter) or DVM (digital-voltmeter) having a sensitivity of 20,000 Ω per volt DC or greater.
• ■ Check all connections before replacing components. Look for broken or loose wires, failed terminals, or wires not pressed into connectors far enough.
• ■ A potential cause of a control not functioning is corrosion on connections. Observe connections and check for continuity with an ohmmeter.
• ■ Connectors: Look at top of connector. Check for broken or loose wires. Check for wires not pressed into connector far enough to engage metal barbs.
• ■ Resistance checks must be made with dryer unplugged or power disconnected.

DIAGNOSTIC TESTS

These tests allow service personnel to test and verify all inputs to the machine control electronics. You may want to do a quick and overall checkup of the dryer with these tests before going to specific troubleshooting tests.

ACTIVATING THE SERVICE DIAGNOSTIC TEST MODE

1. Be sure the dryer is in standby mode (plugged in with all indicators off, or with only the Done indicator on).
2. Select any one button (except Pause/Cancel) and follow the steps below, using the same button (remember the button):

• a. Press/hold 2 seconds
• b. Release for 2 seconds
• c. Press/hold 2 seconds
• d. Release for 2 seconds
• e. Press/hold 2 seconds

3. If this test mode has been entered successfully, all indicators on the console are illuminated for 5 seconds with 8: 88 showing in the Estimated Time Remaining three-digit display. If there are no saved fault codes or active fault codes, all indicators on the console will momentarily turn off, then stay on with 8: 88 displayed. Continue with Diagnostics.
4. If entry into diagnostic mode is unsuccessful, choose a different button (except Pause/Cancel) and repeat step 2.
5. ➔ If no indicators come on after repeating step 2 using a different button, go to TEST #1, page 4.

DIAGNOSTIC: Active Fault Codes

If there is an active fault code, it will be flashing in the display. Review the Display Fault/Error Codes table, page 3, for the recommended procedure.

If there is no active fault code, 8: 88 will be displayed.

DIAGNOSTIC: Saved Fault Codes

If there are saved fault codes, the most recent fault code will show 'F:' and flash 'XX' where XX is the fault code.

Press and release the same button used to activate Diagnostics

• ➔ beep tone ➔ Second most recent fault code is displayed.

Repeat

• ➔ beep tone ➔ Third most recent fault code is displayed.

Repeat

• ➔ beep tone ➔ Fourth most recent fault code is displayed.

Repeat

• ➔ All indicators momentarily turn off, then stay on.

DIAGNOSTIC: Console Buttons and Indicators

Pressing buttons and rotating the cycle selector will turn off the corresponding indicator and sound a beep as shown in figure 1, page 2. Pressing (more time) will toggle the left digit and colon on the display while sounding a beep. Pressing (less time) will toggle the right two digits on the display while sounding a beep.

• ➔ If indicators fail to come on and beep after pressing buttons and rotating the cycle selector, go to TEST #7, page 9.

DIAGNOSTIC: Door Switch

Opening the door should cause a beep and an alphanumeric number to be displayed. Closing the door should cause a beep and 8: 88 to be displayed.

• ➔ If opening the door fails to cause a beep and a number and letter to be displayed, go to TEST #8, page 9.

DIAGNOSTIC: Moisture Sensor

Open the door and locate two metal strips on the inside of the dryer. Bridge these strips with a wet cloth or a finger.

• ➔ If a continuous beep tone is heard and an alphanumeric number is displayed on the console, the sensor is OK.
• ➔ If not, or if a continuous beep tone is heard before bridging the moisture strips, go to TEST #5, page 8.

DIAGNOSTIC: Motor, Heater, and Console ID

Close the door. Press the Start button. The motor and heater will turn on. Continuing to press the Start button will display the project codes and software revisions.

• ➔ If the motor does not turn on, go to TEST #3, page 5.
• ➔ If no heat is detected, go to TEST #4, page 6.

DIAGNOSTIC: Displaying Inlet Air Flow

Used to display the airflow value at the inlet of the heater box being measured by the machine control.

After all saved fault codes have been displayed, press the Wrinkle Shield button to activate airflow detection. A 30 or 50 second countdown timer will start and the dryer will turn on.

• ➔ If the dryer is cold, the countdown will start at 50 seconds.

NOTE: If the dryer is extremely cold (less than 40°F [4.4°C]) the airflow may not be detected properly, and '--' will be displayed.

• ➔ If the dryer is hot, the