[FAQ] Atten 858d problem S-E (or 5-E) or stuck in 498'C.

[stj]

??
you have 4 wires,
2 are the element that is exposed.
the other 2 are the sensor.

[redwire]

Thermocouple (+) is the skinny red wire, it is unique because a magnet will stick to it- it's iron. You will also get continuity to the thermocouple tip at the end.

[clearchris]

These machines are really hit or miss. I'm looking at getting a T12 soldering iron station, it seems that kgser is the original hakko copier and seem to have the best ones. Eruntop looks like they make their hot air stations, but I'm not vouching for either. I got my hot air station off ebay some time ago, it has been ok, with some notable issues (fuse on neutral)...

[sepica]

Hello,
have too one atten 852+ which has worked ok for several years
now has decided to not going sleep anymore
it heated properly and cooling down when put on rest
but display jumps from temp to temp and not going a sleep
maybe someone faced same?
br

[stj]

check the cable for breaks if it's old - i'v seen that lots of times on soldering irons.

[sam_sam_sam]

Originally Posted by senndogg

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.

If I were doing this repair I would resolder all of the joints on this board