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Old 12-06-2012, 04:32 AM   #1
senndogg
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Join Date: Dec 2011
City & State: Kucova, Albania
My Country: Albania
Line Voltage: 220V 50Hz
I'm a: Student Tech
Posts: 301
Default [FAQ] Atten 858d problem S-E (or 5-E) or stuck in 498'C.

Its only a week i have been working with my new Atten 858D+ heating station and i have experienced a problem. The station showed S-E in the digital display, the blower fan was ok but it was NOT heating. Searching the web showed that the heating element was gone, this was an error code, but it was not true. Measuring it showed 70 Ohms. Also the mosfet which drives it was not shorted. The station was also stuck in 498'C sometimes, again no heat.
Browsing again and saw some unresolved topics, there is one at a well-known polish forum. Mine is in warranty too but i was not thinking about shipping it ti China.
After close inspection at the small circuit in the gun, i could distinguish a cold joint at the soldering of the thermocouple sensor. Bingo!
Now the heating is working great again!
Thanks for reading.

First pic is the Atten 858D+. At the moment it is OK, SLP means "sleeping".
Second pic is the culprit.
Attached Images
File Type: jpg IMG01363-20121206-1117.jpg (259.2 KB, 532 views)
File Type: jpg cljnt.JPG (297.3 KB, 656 views)
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