Optoma Problem--Fan Failure Issue HD143x

[@aaronisu]

Hey, thanks for taking the time to make this. One more data point: I own a HD143X and had an intermittent fan error (rare) after about 1 year of use. After about 2 years of use, it became very frequent so I found your video. I opened it up and it looks like Optoma solved the wire gauge problem by the time I bought it in March 2018. My basic calipers showed the wires for both fans were 0.98mm. I cleaned out the substantial amount of dust, checked the crimp on the 3 conductors, and it seems to be working so far.

[@igorsimonovic2936]

Thank you for the video. The same error happened to my projector after 4 month of work. I replaced the fun, but did not solve the problem. But since i found this video i will check with your solution.

[@davemedin1113]

You don't see it in my description unless you expand the description section, but Optoma did contact me about this, and are working with me on the issue to further their manufacturing/repair processes and eliminate the error.

[@mdmfootball82]

Dave - Do you what size JST connector this? Is it a 1.25? 1.5?

[@davemedin1113]

@@mdmfootball82 I regret I did not measure it. I'll have to wait to open up another one here soon.

[@mdmfootball82]

@@davemedin1113 it turned out to be a JST ZH Connector (1.5mm spacer) for all those who can't recrimp the connector (or break it trying) you can buy pre-wired JST ZH connectors on amazon for $5-$10 for 20 of them.

[@davemedin1113]

@@mdmfootball82 Great info. Thanks! I reworked mine under a microscope. Getting the harnesses prebuilt would be much cheaper than buying a crimper, leaving the wires to be joined by soldering.

[@patrickvh75]

We have an Optoma HD142X and I am looking for quieter fan replacement. Your video really helped!

[@davemedin1113]

Make sure you don't do anything to decrease airflow though. Your bulb depends on it! Fans and blowers do go bad and get noisy, but they are there for a reason.

[@Gagliano17]

@@davemedin1113 i'm here for the same reason, i was thinking about putting in noctua fans but from the look of it, it's not the 80mm fan that makes the nose but rather the little one, so now i don't feel comfortable replacing it since i dont have a clue about those type of fans. only my 3d printer has one like it and i didn't replace that one either while i put 3 noctuas on all other fans of that printer. it makes an annoying high pitch noise on the hd144x

[@Gagliano17]

did you ever replace them? did it help? what type did you replace it with, did you change both?

[@Pidalin]

@@Gagliano17 they should make projector body bigger and use standard 120mm PC fans, I don't know why are they making such nonsense products, on max lamp power, noise is so terrible that it's not actually usefull, you must set it to eco mode always which is sad

[@YoloLikeHanSolo]

You are incredibly intelligent. Thanks for sharing the wealth!

[@MrLefterisGR]

In my case the overheating / fun locked message comes when from eco mode turn it into bright after working some time at eco. Is it possible to have the same issue? thanks for the video and your knowledge!

[@emilebrabant5018]

I have the same issue, if somebody figures out the problem

[@wiktorio80]

Спасибо дружище. Сейчас собираюсь пойти к сыну в школу, снимать проектор и заниматься ремонтом. Тоже ошибка по температуре, модель Optoma s302. Буду иметь ввиду ваши сведения. Спасибо! 🇸🇮

[@gregnarez]

My optoma HD30B the overheat light comes on. I replaced both fans, and see them run, but after about 60 seconds shuts down. Any suggestion.

[@patintheredhat]

I replaced both fans but still get a "fan locked" error. Any advice?

[@zeadon]

Thank you for making this video - well explained.

[@chessguru900]

Sometimes after replacing the lamp one might get a fan locked error message in which case the blower fan needs cleaning. Often times from the explosion of an old lamp shards of glass plunge into the blower fan and stick in the blades. 7:10 I guess you can just file either side of the plug and then push it in.

[@emilmagaling698]

please help. i have optoma ep719. problem is fan 2 slot is not working. how can i say that because when i switched the cable of fan 1 and fan 2 the fan 2 is working. then when i switched back to original slot fan 2 is not working again. thank you

[@srikanth5662]

hi, can u up load a video of opening and RE ASSEMBLING 143x top cover step by step.......pl

[@bmeggs19]

Still need help?

[@CinemaDemocratica]

@@bmeggs19 Following.

[@djswizzair]

got this error after 1 week with my new uhd35x but restarting helped still think the issue isnt 100% fixed cuz this still happens even with brand new models , mine litreally ran like 2 days before it shut down the first time at cold surrounding temps aswell

[@CinemaDemocratica]

I have an HD 142x -- "2" not "3" -- and I've enjoyed it for several years, but I just recently bought three replacement projector bulbs and none of them "worked". They would get too bright, then flicker, then the bulb-protection light would come on. The theory that seems to be emerging as a result of watching your video is that I inadvertently jiggled the contact on the blower lead, while swapping the bulb. Two things, though: First, it's not the same model, so I'm wondering if you have an opinion about the likelihood of the same problem and, second, what do I do about it in the absence of an available technical repair? (I live in Cambodia.) Thanks for your video!

[@davemedin1113]

I can't answer for the lack of an Optoma repair facility in your area. Are you using genuine bulbs? I've found in general that the Chinese aftermarket bulbs are complete garbage and not worth using as they do exactly what you are seeing. It is likely that if you aren't getting a lamp error while the bulbs are still working, that the blower fan is working, as it has a tachometer in it that shuts off the bulb if it is not turning at the right speed.

[@swoelPenn30]

How do I remove the rest of projector casing to expose all that, i can only get as far as taking the lamp out?

[@swoelPenn30]

I found there are about 5 little screws on the underside, think 1in each corner of the projector, one is under the parts where you can mount to a ceiling, then pull the plastic peice off that you use to focus the lense, then you can pull the casing apart

[@filmmakerfred]

My projectors says to clean or replace the FILTER does anyone else get that? and what filter does it mean?

[@di9it4l]

Found this video because my hd143x had fan lock when trying to watch a 3D movie. Outside of this mode the projector works as it should so I'm not sure what the issue is. Any ideas on why this would happen?

[@dmedlin8118]

Absolutely clueless, besides some firmware problem. The projector's bulb has the same cooling needs regardless of projection mode.

[@di9it4l]

@@dmedlin8118 very interesting, I wonder if taking the housing off and doing a little dusting would help, along with firmware update if needed? Can I find out if I need an update from the projectors menu?

[@dmedlin8118]

@@di9it4l I've never done an update on an Optoma, so I don't know if they are factory update only or if end users can update them. I don't know how dusting would help with something that only occurs in 3D mode.

[@di9it4l]

@@dmedlin8118 okay cool, thank you for your guidance. I'll give optoma a call tomorrow and see what they suggest

[@TheJinGonzu]

Hello, thanks for the video, I have a question about this, on the blower fan I connected V+ and PWM Signal, after a few seconds it smelled like I did something very wrong. Now the board is still intact, but PWM and GND on the blower adapter are now connected. At the end of the video you are saying that the board is measuring the speed of the blower fan, do you have any idea how to stop the board from doing this. Or where I could get a new board. Right now, I ran into the error message: "Fan closed" if I try to start the projector, but I have fans attached on the system side, so heat is not a problem. If you have any idea, I would really appreciate it :)

[@davemedin1113]

The fan has three leads--V+, tachometer, and ground. All 3 need to be connected for this to work properly. No, there isn't a way to defeat the tach--you need to provide a signal at this pin that is the same as the fan would at its nominal RPM, if you wanted to fake the projector as having a working fan, but why would you do that? The tach is there for the projector's protection. I can't comment on the mis-wiring of the fan, and the potential damage it can cause.

[@TheJinGonzu]

@@davemedin1113 Thank you for your quick answer, I already asked Optoma about a Datasheet for the projector board, but I would also ask you, if you have one, at least for the blower fan part.

[@davemedin1113]

@@TheJinGonzu Optoma is unlikely to answer you, and I don't have the schematic. I don't have the blower part number either. I note that there are sellers on eBay that have a replacement up. Usually the part number is on the rear of the fan/blower.

[@TheJinGonzu]

​@@davemedin1113 I hope Optoma can help me with this, right now the tachometer is connected to GND and I am afraid I cannot fix this without a datasheet, and I could not find a replacement for the mainboard so far But anyway, thanks for your time

[@DugNastyMusic]

not sure if youll see this but i have an optoma hd143x that has a power issue after barely two minutes it powers down and the power light blinks 3 times. the only way around for me to use it is to 1 .plug the ac power cable while holding down the power button 2 .the three indicator lights all flash 3. hit power again then it starts up no problem but to turn it off it will keep cycling so i have to unplug the power cable no other issues for it at all but i have no idea where to take it for repair do you have any thoughts on how i can repair this myself? thank you and i appreciate your videos!

[@davemedin1113]

Having the power indicator flash can, according to the manual, reflect a fan failure (not making RPMs) or overheat. If you overrride, what you will earn for the effort is an extremely short bulb life. Every cubic foot of air movement designed for is required to keep the bulb within limits.

[@DugNastyMusic]

@@davemedin1113 thank you for this info. I’ll have to double check the fan is working alright and see if the contact or insulation on the blower contact is too thick.

[@evigklytteren]

Just got the "fan locked" error on a 144x. It has been ceiling mounted and has been working fine on the daily for 3/4 of a year now. Luckily still under warrenty

[@ricknograv]

Hi Dave, first of all thank you so much for this video. I have been looking for a video about the hd144x, but this one is similar enough. I already own one that works perfectly, now i bought another one thats defect on an auction which i thought i couls possibly repair. The problem is that the lamp wont strike. I've tested the lamp in my other projector and switched bulbs. Both work fine in my projector, but in the broken one it just wont fire up. I myself am guessing for the ballast but maybe you have any clue what it could be and/or how to test this?

[@garymclure1]

only just received my optoma hd144 projector had for 5hours and now fan failure appeared says contact dealer disgrace brand new projector and now not working

[@Gagliano17]

just trade it in, if it's new it shouldnt be an issue, i have mine since 3-4 months and put over 450 hours on it already, never had an issue, just thinking about replacing the fans with more silent ones

[@Pidalin]

Why they just don't use classic standard PC fan 3pin connectors? It would be much better.

[@aftertheshowmoviepodcast]

Thinking of buying one of these new, do you know if they still have the defect?

[@dmedlin8118]

I don't know. The project manager said that they had addressed the issue. But, my advice would be to keep an eye on it and if there is premature bulb failure or a heat alarm, use your warranty rights promptly.

[@Gagliano17]

there is a hd144x, i've been using it, beside the little fan making an annoying noise (which you wont hear when you have any audio along with the image) it's perfectly fine and probably the best sub 500 dollar projector you can get, native 1080p and insanely good 3d (i use 37 dollar active glasses) and really good light performance.

[@ricknograv]

I have the hd144x, it seems they have corrected this issue because the wires are smaller on this connector :) i myself am very happy with the projector

[@marcusdamberger]

@@Gagliano17 What 3D glasses are you using? I've only recently got a DLP projector with 3D built in and wondered what are the best glasses to get. I've got a LG OLED that's fantastic in 3D, but they use passive, just like the theater glasses. In fact cinema glasses I happened to have work with the TV no problem, so cheap extra glasses. ;)

[@tomeQCK]

Im having a problem with this projector, thete is something on the screen looks like a hair and is very anoing, I was trying to open IT and clean it but there is no video tutorial how to do it and is not Simple to disassembly it. Could you do some kind of short video? Or we can get on touch somehow

[@marcusdamberger]

FixitFrank has a lot of good videos on projector repairs. I know he has a few on things getting into the optical block and causing distorted color and other on screen annoying things like your 'hair'. Cleaning the projector and what to watch out for etc. You might pose a question to him, he often responds. kzbin.infofeatured

[@rgergazas]

Hey Matovy, have you managed taking it apart?

[@tomeQCK]

@@rgergazas yes I have but i didn't touch the optics. I have opened the lamp and sprayed inside with air duster, since that time there is no hair on my screen anymore, but I would like to open optics and give it a proper cleaning.

[@Kimby278]

Dave, please let me know where I can paypal you a couple of bucks for saving me about $400 by this video. I stripped the insulation a bit, re-crimped the connector and plugged it back in No problems. Thank you for making this video.

[@dmedlin8118]

I appreciate your kind comment. I really was not in this to make any money, but to point out a design or assembly shortcoming. The satisfaction that it did someone some good is enough reward. Thanks!

[@laptoprepairs]

I always break the connector off and hot wire it straight to the motherboard and the issue never comes back again :)

[@Dishinitdown]

Do you happen to have any instructions or video for doing this? Have the same issue and don't know what kind of adapter to get to try this replacement.

[@laptoprepairs]

I don’t like making videos but just break the white connector off wire the positive and negative, not data. Turn it on and the fan fail message will come up then turn it off the solder the data wire turn it on and the error message will be gone 👍

[@thehandseesall]

Mine exploded last night