Firmware 17.4, is it normal for the vacuum pump tp start/stop a couple dozen times during the initial pull down of the chamber? Ballast valve open for the duration.
Used candy 'recipe' to try skittles and gummie life savers. Peculiar that the gummie life savers are crisp/crunchy but reconstitute to their original tecture with the addition of saliva, but the skittles stay crunchy all the way through. Need more time on the gummy lifesavers?
This morning ranier cherries, pitted all, cut all in half except one tray to determine if pitting is enough to pull the water out. Stabbed the blueberries with a paring knif to see if that's enough to successfully freeze dry.
Hey Jim, sorry I didn't get to this one sooner. I just saw it. We had changed the code to fix that issue with the candy recipe. Could you email support@bluealpinefreezedryers.com and we can get this to the right person.
Sent: Monday, July 14, 2025 13:00
To: Jim Dunbar <jimdunbar@hotmail.com>
Subject: Re: commercial pump initial start/stop/start/stop
Hey Jim, sorry I didn't get to this one sooner. I just saw it. We had changed the code to fix that issue with the candy recipe. Could you email support@bluealpinefreezedryers.com and we can get this to the right person.
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Brent Marriott
Blue Alpine LLC
208-607-1722 | Support@BlueAlpineFreezeDryers.com | https://BlueAlpineFreezeDryers.com/
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Brent, James Roberts provided the solution - check the voltage selection switch near the power button and if not in the 115 VAC position, place it to the 115 VAC position. It was in the 230 VAC and has been repositioned. Problem solved, pump runs without the start/stop/start/stop during the first 4 minutes of chamber pull down. Thank you all for resolving the issue!