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Restart the system. Click on "Start," "Turn off Computer" and "Restart."
At the Dell loading screen Tap "F2" to enter the BIOS. "Entering Setup" will appear. Certain models may use a different key. The key will be displayed during the boot process. For most Dell models, the key is "F2."
Once loaded, depending on BIOS version and type, you can reset the defaults by using "F9" key to Load Defaults, the "Load defaults" button on screen, or the "Alt" + "F" key combination to load factory defaults.
Press "Esc" on your keyboard and select save and exit.
Choose the "Enter" key to save all changes and exit the BIOS screen. Allow your system to restart for the BIOS settings to reset.
1. Check keypad connector for firm connection (keypad connects to control
board).
2. Press CANCEL. If error code returns after 60 seconds, replace keypad
(also called touch pad or membrane switch). Some models incorporate keypad
in to control board as one unit. In this case, replace control board (also
called ERC or clock).
Below are the F2 errors and causes for Sharp AR-M160
"F2-31" Image density sensor fault "F2-32" Drum mark sensor fault "F2-33" Grid voltage correction problem "F2-35" Grid voltage correction problem "F2-37" Drum mark sensor fault
Cause : CRUM chip defect OR Improper developing unit Check and remedy : As you have already replaced the tonner, we can suggest Replace the CRUM chip,Replace the developing unit
To figure out what Code F2 is, I took a look at the Owners Manual for the Model # AD70USS, Strangely, the Owners Manual doesn't list an F2 Code or any codes for that matter. Because that model number humidifier, does not have an LED screen.
Never the less, to reset your unit using an alternate method. Turn the Master ON/OFF Switch to OFF and unplug the unit from the wall outlet. Wait 12 - 15 minutes before plugging it back in. Then turn the Master ON/OFF Switch to ON and the dehumidifier should have reset itself. If it doesn't check the positioning of the water bucket, to make sure it's contacting the safety switch. Eventhough, you're using a drain home, it's still important.
To reset the BIOS please follow the below steps.
1 . Restart your Dell laptop. Click on "Start," "Turn off Computer" and "Restart."
2 . Press "F2" during the boot process to enter the BIOS. Press "F2" before the Windows loading screen. Certain models may use a different key. The key will be displayed during the boot process. For most Dell models, the key is "F2."
3 . Use the "Alt" + "F" key combination to load defaults.
4 . Press "Esc" on your Dell laptop keyboard to save and exit.
5 . Choose the "Enter" key to save all changes and exit the BIOS screen. Allow your laptop to restart for BIOS settings to reset.
The F2 could mean a timer/control has detected a stuck/shorted keypad. Depending on the model number though it could also mean a shorted oven temperature sensor.
In the event it is a stuck keypad detected, the timer or keypad will need to be replaced. You should first attempt to reset the breaker or unplug the range for a couple of minutes to see if that resolves the error code.
If it is the model that uses F2 as the shorted sensor code, you`ll need to replace the oven sensor, there`s no way around that one.
If you can provide a model number by replying to this post I could try and be more specific, as right now I can only generalize with the most common F2 error codes meaning for Whirlpool manufactured ranges/ovens.
That mean that the key pad is shorted,needs replaced
E0-F2 Shorted keypad Replace Electronic Range Control/Clock (ERC) Or E0-F2 Oven temp too high 1. Test operation of door lock on self-clean models 2. Test relay contact operation 3. High resistance in oven temperature sensor
The solution was to hold down the "start" button for five seconds, which reset the system. I figured out that I had entered the model number of my oven wrong (mistaking a "Z" for a "2"). When I re-entered the correct model number in the "search for manual" section of the Whirlpool site, I was able to access the user manual and find the section that walked me through the correction.
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