What does the message a problem has been detected mean

Sewing Machine: Needle won't move
A disengaged clutch, broken drive belt or internal drive gear failure can prevent the needle from moving. Engage the hand wheel clutch if you have it disengaged for bobbin winding. If the needle won't move with the clutch engaged, unplug the sewing machine and check the drive belt.
https://www.searspartsdirect.com/diy/symptom/sewing-machine-repair/1234596/needle-won-t-move/smac1011147
How to Fix Brother Sewing Machine Error Code E6 Q: What does E6 error message mean? A: The motor locked up because thread is tangled Q: How to fix E6 error message? A: Do the following:

• The upper thread could be tangled. Remove the upper thread and any loose threads. Raise the pressure foot, raise the needle to its highest position and rethread the machine.
• Remove the bobbin and bobbin case to clean any lint or loose threads. Install the bobbin case so that the projection on it aligns with the spring. Then install the bobbin into the bobbin case.
• The needle could be bent. Replace the needle making sure the flat side is facing the back.

it means that the chipset heatsink on the motherboard has come loose. There is a sensing circuit that is closed by the spring clip that holds the heat sink in place. One of the loops on it has broken, causing the error.
Resolution is motherboard replacement
http://shop.ebay.com/i.html?_from=R40&_trksid=m570.l1313&_nkw=dimension+4600c+motherboard&_sacat=See-All-Categories
installation information:
http://support.dell.com/support/edocs/systems/dim4600c/sm/parts.htm#1102134

Your experiencing symptoms of clutch malfunction with the FAV6800AW. Do you want to dive in and try to fix? Here is what is involved to pull the clutch out of your machine. Also read the last couple of post in this forum. If you call a repair service in your are looking at $300 +. If you can DIY the repair cost could be from $10 dollars if you just need a roller clutch clean up and re-lube to $50 -140 for a replacement clutch. I'm cheap and would go for the $50 Clutch.
What is the serial number of your machine? Just need the first two digits i.e. 10, 12, 14, 16. This info is located on the top right back side of the console.

Next comment will be the clutch removal process, this board has message limits.

check the main nut on the botton it comes lose

It's called Brake Fluid Level Switch Try a auto salvage yard > Couple of buck's
Brake System Indicator
The instrument panel cluster (IPC) illuminates the brake indicator when the following occurs:
• The body control module (BCM) detects that the park brake is engaged. The IPC receives a class 2 message from the BCM requesting illumination. If the vehicle is shifted out of park with the park brake engaged, the BCM activates an audible warning.
• The body control module (BCM) detects a low brake fluid condition (signal circuit is low). The IPC receives a class 2 message from the BCM requesting illumination.
• The IPC detects a low brake fluid condition (signal circuit is low).
• The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 3 seconds.

Washers - Harmony Washer Error Message or Code
The Harmony washer electronics can automatically determine if problems exist with the machine. Sometimes an error code can also be present because of things the machine cannot control: like changes in house voltage, water pressure, or temperature.

"A problem has been detected with this unit" will be displayed on the screen.

The most common solution for this message is to turn the machine OFF and then ON. However, this message will sometimes cause the control to stop the machine from working. With this type of error, the control panel will need to be reset. The following steps will allow you to reset your control.

Solution:
1. Clear the ERROR from the screen: Press and hold the MY CYCLES and BACK buttons simultaneously for 3 seconds. The control will display any recorded errors. Please write down what error codes are shown on your screen in case service is needed. If a MORE icon is displayed on the screen, press MORE to list additional errors. When the EXIT button appears, press EXIT.
2. Remove Power: Follow the onscreen instructions to remove power (unplug unit) and then immediately plug unit back in.
3. Clear Setup Mode: After power is restored, a setup screen that begins with "Congratulations..." will be shown. DO NOT PRESS the OK button shown at the bottom of the screen. Press the START/STOP and POWER buttons simultaneously until the Home Screen is displayed. Your unit is ready to function normally.

It's not really very hard to get at, it just sounds hard. You have to lay the washer on it's side and take the motor rotor off to get to it. It is made of white nylon plastic.

the meaning of cover is open means --------the cover means.the thing which you lift to remove or install the cartridges.just keep that cover closed.if that cover is closed still its showing the same error.then the sensor which detects the cover closed is got moved from its orignal position.to reset the sensor just tap all the sides of the printer for couple of minutes.mostly the top side and front side of the printer.and then check out the error must go away.if still the same error then its quite possible that sensor is broked as it very very delicate .so it needs a technician to replace the broken sensor.the cost to replace the sensor must not exceed then $5.

if your under warrenty always call for service repairing it yourself voids your warrenty