Society of Robots - Robot Forum
Electronics => Electronics => Topic started by: Admin on December 23, 2008, 09:04:18 AM
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I am using the Aoyue 2900 digital soldering iron (http://www.amazon.com/gp/product/B000ZPUKQ4?ie=UTF8&tag=societyofrobo-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=B000ZPUKQ4) (220V version) but having problems with it.
(http://www.assoc-amazon.com/e/ir?t=societyofrobo-20&l=as2&o=1&a=B000ZPUKQ4)
I used it quite heavily before the problem occurred, typically set at 470C. And it worked beautifully . . .
But now, if I go above 460C, it just keeps beeping at me. Sometimes even at ~430C it has trouble keeping its temperature constant - even once when I wasn't soldering anything! Originally it was very fast getting to the right temperature, but now its like the temperature control algorithm is going whack, sometimes overshooting the temperature.
On 3 different occasions it reported I think 938C (if I remember the exact value correctly). Obviously impossible as it can't go above 480C.
I suspect a problem with the temperature sensor as it still solders just fine.
Anyone with ideas? The manual doesn't mention this problem, but suggests using a multimeter to measure resistance on the tip . . . I don't own one at the moment so checking other ideas first . . .
The Aoyue repair shop will probably charge only ~$15, but it's like a hour trip away. Hoping I can identify the problem first . . .
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I don't know if they would give you any support or not, but here is where I bought my 968 from.
They were really great to work with and dealt with special requests like asking them to add a couple solder tips to an order that was already packaged and heading out the door so I wouldn't have to pay a second shipping charge. :)
http://www.sra-solder.com/
It might be worth a shot to send an e-mail and ask the question.