Electronics Forum | Fri Sep 16 06:34:07 EDT 2005 | ajay
We have link fail issue now & could not able to establish. Overall situstion is that oven can not work. we checked all relay 24vac, 24vdc, 110v, 120v, 240v. all looks ok. only issue we ovserve that from B250SSR pin no 3&4 we are unable to get 5VDC. T
Electronics Forum | Mon Oct 06 11:09:20 EDT 2014 | cyber_wolf
I dont have a schematic anymore but its most likely the SSR for that zone or the blower.
Electronics Forum | Thu Oct 22 03:10:49 EDT 2015 | myleb
I already check that sir, maybe its a loose > connection or board problem. maybe the ssr board was damaged. try swap the ssr between the A and B stage. Open the machine cover at AF/BF stage, it's the down left board with many connectors (have COV1
Electronics Forum | Fri Sep 16 16:22:51 EDT 2005 | JW
Sounds similar to a recent problem with our VIP70. We thought it may be the SSR, then the FCU ... Swapping blower unit with a second oven finally helped us traced the problem to the thermoswitch inside the blower assembly.
Electronics Forum | Tue Feb 10 05:45:09 EST 2009 | muarty
Anyone, We have a fault on our BTU VIP98 reflow oven. At present NONE of the zones are heating up, even though all the SSR's appear to be working and we have voltage at the elements and the fans are all working. Anyone got any pointers? Thanks in ad
Electronics Forum | Wed Feb 11 06:37:10 EST 2009 | reflowtechnologies
Please check the following: 1.Power supply. 2.SSR control power. 3.OTP or over temp protection at the software. Maybe you set it at low so it reads over temp even at lower temp. If still not ok you may check BTU service engineers. Brian Riggs
Electronics Forum | Fri Apr 24 13:50:44 EDT 2015 | duchoang
Try to check the SSR (Solid State Relay) in the back panel. You may need to replace one or some of them. Good luck.
Electronics Forum | Wed Feb 08 08:29:41 EST 2017 | dleeper
Ry-n, Yes, this applies to Heller ovens. I had the exact same problem. The SSR failed and current continues to flow through the heating coils until it triggers an emergency shut down.
Electronics Forum | Tue Sep 28 06:16:34 EDT 2021 | bukas
sometimes SSR can stay in ON state. load cooldown and check if SSRs ever go OFF.
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