savin 8075 sc 553

[djdan73]

i have a savin 8075 copier in a customers office that keeps coming up with a sc 553 and has almost a million copies on it . the tech manuel says its

Fusing thermistor error 3
The end thermistor (contact type)
was at 240

C (464F) for more than
1 second. The temperature is read
10 times every sec. (at 0.1 sec.
intervals).
possible causes

PSU defective

IOB control board defective

BICU control board defective
i was wondering if anyone has run into this issue and if the know anything i can try other than replaceing these parts

[Fearless V K]

I would try replacing the fusing thermistors first.

[Shadow1]

ditto - the thermistors are very fragile. If there is any buildup on them at all they don't react fast enough to temp change. Even if you manage to clean one without destroying the mylar the internal connections to the actual sensing element are dinky and easily broken - just replace it.

[djdan73]

ok i will try that just didnt know if there was any other ideas if that doesnt work

[mrwho]

Re: savin 8075 sc 553

I know this is an old thread, but had an SC553 today on a MP8000 and, after checking thermistors, swapping fuser and boards with another machine, I only managed to solve it by doing a Memory Clear via SP5801. Before the SP, the machine would throw a SC553 after less than 100 copies; after the SP it worked the rest of the day without a glitch.

I'm still sceptical until a couple of days are passed, but at least its something else to try when one of these show up.

Cheers!