Hi, I have an Optoma Hd70 and it keeps turning off after about a 1 min and the temperature indication is blinking red. Is there an airfilter I can clean or something?

I am betting that the ribbon cable to your color wheel has become loose. Here is a detailed slide show of a similar model so note where the cables are and check each one.
Optoma HD20 DLP Projector DMD repair turning green and flickering

hi,
Do the following for reset the lamp hour.
1. Press the menu button
2. Select Options.
3. Select lamp settings
4. Select lamp reset.
5 Select Yes
ok

well try this....

Before replacing your bulb, fan or any other component try first cleaning your optoma realy good!! HD70 doesnt comes with any kind of filter so you can imagine the amound of dust can be.
The most importent thing is to blow away any dust from your color wheel + the sensor attached to it .

for farther troubleshoting clean your fan's.
there are 2 fan's insinde the HD70.

probably the most problems will be solved by cleening the color wheel!!
if the problem is not solved ,chack the lemp and the fans if they work properlly.

For fan replacing:
Fan Part number: GM1207PKVX-A

Look in page 40 of your projector's User's Manual.
If you don't have the manual, you can download it from OPTOMA support pages: OPTOMA HD70 USER'S MANUAL

my 3m projector turns off as soon as it is turned on

Asher fadida and alll,

The issue:
solid red error light?
HD70 "die's" after few min with strage noise?
flickers different colors before complete self shutdown?

well try this....

Before replacing your bulb, fan or any other component try first cleaning your optoma realy good!! HD70 doesnt comes with any kind of filter so you can imagine the amound of dust can be.
The most importent thing is to blow away any dust from your color wheel + the sensor attached to it .

for farther troubleshoting clean your fan's.
there are 2 fan's insinde the HD70.

probably the most problems will be solved by cleening the color wheel!!
if the problem is not solved ,chack the lemp and the fans if they work properlly.

For fan replacing:
Fan Part number: GM1207PKVX-A



Good luck!!

mine is doing this exact same thing. would love to know if you fixed this problem or if anyone else has had this problem and had it fixed.

where i got Optoma HD70 DLP Projector spears

Call 1-888-942-2929 option 2 the cost is $59.00