Electronics Forum | Wed Sep 12 11:03:35 EDT 2007 | cyber_wolf
Ya I am hip on the caps. These blowers squeel then quit.
Electronics Forum | Mon Apr 15 12:36:04 EDT 2019 | robl
We found the blowers were usually fine, but the capacitors strapped to the blower motors were failing. They were under $5 each from Digi/Mouser/Allied/RS. Worth keeping a few around. Last place had 12 Hellers including a 1500 doing ROHS with no is
Electronics Forum | Thu Jan 18 07:30:13 EST 2007 | realchunks
It could be the blowers in cooling section of the oven. Try turning them off. It could be the belt is not level.
Electronics Forum | Wed Sep 12 11:01:49 EDT 2007 | leemeyer
We have an Omni 7. We were having problems where blowers wouldn't start. Turned out to be the start capacitors and not the blowers. I replaced all of the caps and haven't had any issues since.
Electronics Forum | Mon Apr 15 10:32:23 EDT 2019 | slthomas
Just a comment on the Heller 1500. We had 3 at a previous workplace where we never made the Pb-free transition (this was early 2000's). The ovens we had were not designed for and were never used for Pb-free processing yet every one of them had all o
Electronics Forum | Fri Mar 22 04:20:29 EDT 2013 | jlawson
Also Rehm Thermal Systems Ovens would be worth a look... They are well made, ALL stainless tunnel , 3 phase blowers, highly realiable, and they have new entry level series called VXC Series starting at 6 zones+, but based on same tech and build as t
Electronics Forum | Tue Sep 11 08:36:53 EDT 2007 | cyber_wolf
We seem to have a lot of blowers going bad on our Omni 10 lately. We run PB free and/or elevated sn/pb profiles on a regular basis. I am starting to suspect that the elevated zone temps are causing the blowers to fail. Has anyone else had this prob
Electronics Forum | Tue Sep 01 02:57:42 EDT 2009 | d0min0
davef As for the repair : - with hot air blower it is not possible (you can melt, but it will not wet) - with standard iron - no problem to repair (no additional material is needed) isd.jwendell yes, the profile is checked on those places (same si
Electronics Forum | Thu Sep 16 12:06:29 EDT 1999 | Scott S. Snider
| | | Hi, | | | | | | Can someone pls suggest to me the best reflow temperature setting | | | for a force air convection oven. The details is as follow. | | | 1) Heller 1700s | | | 2) 12 zone---6 top and 6 bot | | | 3) Solder paste --- Qualitek 691
Electronics Forum | Thu Nov 11 14:13:57 EST 1999 | Dave F
Thomas: From what you're telling us, you seem to be thinking correctly: 1 Paste should not spread appreciably in preheat 2 Something has changed, because you've not had this problem, until recently Two things to consider: 1 Has any thing changed
winsouce.jpg)