OmniHub acting up suddenly

GaryParr

Well-known member
Aug 21, 2020
137
Rhode Island
We've had some power fluctuations recently during storms. During one of these incidents, my pump stopped. The Omni didn't realize that though and just reported that I was happily pumping along at 50% speed. Telling Omni to stop the pump and then turn it back on did nothing. Omni thought the pump stopped and turned back on. I had to shut down the system, disconnect power to everything, and then turn it all back on to get things working again. Since that episode, it's happened twice more when we have storm related voltage drops. I've also noticed that, since then, when I turn on the heater the pump will not automatically ramp up to the minimum speed. If, at that point, I try to bring the pump speed up manually, nothing happens. If I turn the heater off, speed can be adjusted again. If the pump is brought up to speed and I turn the heater on, everything works and I can adjust the speed from there, just not below the minimum. When the heater reaches temp, pump speed will drop back do the scheduled RPM as expected.

So... does this sound like something got a little fried during a storm? Or like something a re-configuration of the system might fix?

My wallet hopes you all say it's just a reconfiguration issue.
 
That is a strange set of behaviors.

Let’s see if @ChrisLPC has ideas.

What MSP version do you have in your OmniHub?
 
MSP: R0500000

I would upgrade it to 5.0.1 and see if it fixes the problems.

 
And, strangely enough, after putting the hub into service mode yesterday and discovering it didn't think it needed to update firmware to 5.0.1, the pump now ramps up to the minimum speed required when I turn on the heater. I'm assuming that exiting service mode simply forced it to reprocess the configuration, which is also odd to me since you think that would happen upon a restart as well.

Curious why the hub is ignoring the 5.0.1 firmware.

Still worried about what will happen with voltage drops though and there is no way to test this that I'm aware of.

You might consider a line conditioner to avoid brownouts that are triggering this.

So, after looking into this... anyone have ideas on a way to do this without dropping $3k on commercial grade equipment?