In my case I already had the resisters, but to buy one resistor would have been cheap. This fix cost me nothing except for my time. Looking online, people were throwing away Epson projectors that cost $2000 because of this. This projector was not very expensive, I think it was $300, but we really haven't used it very much, maybe 100 hours of watching movies on it, its supposed to last 4-5000 hours. Also, reading online, other people have the same issue with these sensors, it seems to be a recurring problem. Thermistors are incredibly cheap, and an OEM making one to last should not be hard. They have a total lack of support to fix, or even diagnose a problem with their product. I wrote this out of frustration with Epson. If the projector is really overheating, it will be the exhaust temperature that registers it, and shuts it down. I justified bypassing the sensor because the intake air temperature is a little redundant compared to the exhaust air. I reconnected the resistor, pointed the projector in a less annoying direction, turned it on, and left it on for 2 hours. Without the resistor, the projector would last maybe 5 seconds before shutting down and blasting the fans, so 5 minutes is impressive. As soon as I pull it out, the bulb shuts off and all three fans go into high speed mode. I let it run for 5 minutes before I unplug the resistor to see if this is the fix, or its just a coincidence. Looking back, I should have chose one more like 10,000ohms.Īnyways, wouldn't you know it.
I think this one was 200 ohms, another shot in the dark. Turns out I couldn't find a thermistor, and at this point I thought this was a long shot anyways, so instead of using a thermistor I took it one step simpler and just used a resistor. I could take a guess at what Epson thought intake air temperature would be. I was concerned this thermistor might be for a very specific temperature range. My original plan was to replace the broken thermistor with a working one from my collection of random electrical components. People are throwing out much more expensive projectors than this one! But failed temperature sensors seems to be a somewhat common problem on Epson projectors. This was not the most expensive projector, it was a few hundred dollars on sale. Electrical components are cheap, and this is a cheap fix. However these are very difficult to find, and expensive. The best option would be to replace the failed sensor with an OEM Epson replacement part.
Instead of throwing it out, and buying a new one, we can repair it. This is a failed thermistor sensor, which shuts down, and renders the whole projector useless. The key here is the unit is not overheating, the bulb has been on for only moments, and the unit is cold. I don't think service is a real priority for Epson. Epson's website does direct you to an "Authorized Service Center" but the website would not load for my region. This is a manufacturer's defect, tiny cheap sensors. Some users have plugged air filters, and when the filter is cleaned, the problem is corrected. This is not a plugged air filter! Epson's online help for a case like this places the blame on the user and poor maintenance. During this, the red "temp" light flashes. The fans stay on for about 2 minutes then the projector shuts down. The projector goes into an overheat protection cycle, where after running for 30 seconds to 2 minutes, the bulb shuts off and all three fans ramp up to maximum speed.
#Creation workshop please check input projector how to#
This is an instructable for how to repair an Epson VS210 projector when one of the temperature sensing thermistors stop working.
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