Error(51A2): System Cover has probably been opened

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Hi, These are some codes to your DLP HDTV.

Error Code Probable Cause
12 No error detected
22 Recovery from momentary Reset
32 Lamp Cover open
33 Air Filter Cover open
34 Lamp abnormality
35 Chassis Fan failure
36 Exhaust (Back Cover) or Lamp Ballast Fan failure
37 Engine (DMD or Lamp) Fan failure
38 Excess Lamp Temperature
39 Excess DMD Temperature
41 Short Detected
44 DVI Cable (between Chassis and Engine) disc

0176 error meaning the system cover had been opened. To fix this error, you need to enter CMOS setting or BIOS setting. press F10 to save before exit. Then the error will be gone.

Did you ever open the system cover before this error happened?

The service manual does not list an error code for "21".
Here are the error codes:

Error Code Probable Cause
12 No error detected
22 Recovery from momentary Reset
32 Lamp Cover open
33 Air Filter Cover open
34 Lamp abnormality
35 Chassis Fan failure
36 Exhaust (Back Cover) or Lamp Ballast Fan failure
37 Engine (DMD or Lamp) Fan failure
38 Excess Lamp Temperature
39 Excess DMD Temperature
41 Short Detected
44 DVI Cable (between Chassis and Engine) disconnected

Go into the BIOS and disable the error message unless you are not the owner of the computer or you care when someone has opened the case.

The chassis intrusion detsctor has been set off. You'll need to look at your owners manual for the steps to reset it. Good luck and hope this helps.

check the error blink code again as 56 is not a valid error code for the WD62525
Error Code Probable Cause
12 No error detected
22 Recovery from momentary Reset
32 Lamp Cover open
33 Air Filter Cover open
34 Lamp abnormality
35 Chassis Fan failure
36 Exhaust (Back Cover) or Lamp Ballast Fan failure
37 Engine (DMD or Lamp) Fan failure
38 Excess Lamp Temperature
39 Excess DMD Temperature
41 Short Detected
44 DVI Cable (between Chassis and Engine) disconnected

I found this list of codes
Error Code Probable Cause
12 No error detected
22 Recovery from momentary Reset
32 Lamp Cover open
33 Air Filter Cover open
34 Lamp abnormality
35 Chassis Fan failure
36 Exhaust (Back Cover) or Lamp Ballast Fan failure
37 Engine (DMD or Lamp) Fan failure
38 Excess Lamp Temperature
39 Excess DMD Temperature
41 Short Detected
44 DVI Cable (between Chassis and Engine) disconnected

I had that problem too.

Unplug the printer.
Hold the printer cover open while you plug in the printer.
Then close the printer after it powers on.

It worked for me.

I hope there an option in the BIOS that could disable chassis intrution detection. Please check the BIOS settings....