Error 33 How do I resolve error 33? I had to take the screen off and disconnect a few things to move it up some stairs. After putting it back together and reconnecting everything all that happened was the power light came on for a second then flashed 3 times and then nothing else. I ran the diagnostic test and it flashed 3 times with a pause then 3 times, 33. That is code 33, Air Filter is Open. I just need to find the Air Filter. Please just a picture or small diagram would be great. I've searched the user manual and all over the internet with no help or solutions.

SOURCE: Flashing Green Light on Front of 73" Projection TV

on the signal board replace the caps by the 5/9 volt regulators. c2p04 is the main culprit. 6 caps in total can be changed. I believe c2p05 also.

SOURCE: i get sound with no picture for abou 30 seconds and then the tv shuts down again

your lamp is out call mits and get a new lamp and only buy from mits!!!

SOURCE: Flashing timer light, cannot turn on tv

Press and hold "Device" and "Menu" buttons for six seconds and see if you then get a patter of flashes pertaining to the error codes... I would suspect one of the following codes:
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
Bill

SOURCE: what the error code means

Reference this:

Mitsubishi TV Codes

Hope this helps

SOURCE: Have a Mitsubishi WD-62327 DLP projection TV. It

if you hold the input and menu button for 5 seconds it will flash you a code 36 is the lamp fan / dmd fan has gone bad. pretty common. not hard to change but will cost 100 in parts and whatever labor may be