Question about Kenmore Elite 45986 Front Load Washer
"F21" is a Long Drain error code. This is an indication that you have an obstruction somewhere in the drainage system. Most commonly, this means there is something lodged in the drain pump or inlet line running from the wash tub to the pump. There is a white screw off cap on the drain pump that you can remove to inspect the pump impeller and clean. The following link explains:
Included is a follow-on link that explains how to check the drain pump to clean. You may also have to remove the inlet hose that runs from the bottom of the wash tub to the inlet side of the drain pump. Debris and small articles of clothing such as sock or under garments can commonly clog in this area as well causing the drain cycle to fail.
NOTE: The "SUD" error code can often occur in conjunction with the "F21" error code. This is due to air being detected in the drainage system, which can occur if the pump is not running, or if you have an obstruction BEFORE the pump. You need to remove the inlet hose from the pump to ensure it is also not blocked. Correct your drainage system fault, and the SUD error should go away.
If you have any questions about this repair, or need additional assistance, please let me know. I hope this helps you.
NOTE: If these preliminary measures do not correct your problem, you may have to replace the drain pump. It does not take much to damage the pump impeller or motor. Since the error code is generated if the drain cycle exceeds 8 minutes, if the pump is damaged and can't pump at the required volume, the error code will continue to appear until the pump is replaced.
Posted on Dec 18, 2009
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Posted on Jan 02, 2017
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To begin the test program, press both the SCRUB WASH and DELICATE/ECONO wash program buttons at the same time
as you turn the unit on by pressing the ON/OFF button. Initially, the control unit version number will appear in the display
(e.g./ 20 = version 20, 21 = version 21, etc.).
When the wash program buttons are released, the LED's above them will begin flashing. To end the test program or test cycle, press the ON/OFF button.
To check the wash program LED, press its corresponding button.
To check the Cycle Countdown display, Refill Rinse Agent LED and REGULAR WASH button LED, press the REGULAR WASH button (press the DELAY START button to test the
Cycle Countdown display alone).
The Cycle Countdown display should show "88" when the DELAY START button is pressed and "8h" when the REGULAR WASH button is pressed.
To start the test cycle, press both the SCRUB WASH and DELICATE/ECONO buttons a second time.
When the test cycle has completed, the Cycle Countdown display will indicate a fault using the codes below. If a combination of faults exists, the code numbers will be added together, (e.g./ 6 = faults 2 + 4).
0 = No faults
1 = Aqua Sensor ("Sensotronic") fault
2 = Heating fault
4 = Filling fault
8 = NTC (temperature sensor) fault
email me at email@example.com and I can send you via a "pdf" of the diagnostic/repair manual for your specific Bosch...provided it is indeed a SHU5316 unit.
I`ll watch for your reply. Good luck.
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