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D5 Next "Pump Speed Too Slow" Alarm

moldilox

Newbie

D5 Next "Pump Speed Too Slow" Alarm

Sunday, August 20th 2023, 9:28pm

I have a new Ultitube100 Pro with a D5 Next hooked up to a new power supply with the jumper installed. No other cables are attached to the D5, just the sata power cable. I have two radiators in a test loop and nothing else. I am using the test loop with distilled water to flush the new radiators. Everything starts up fine but consistently after about 2-3 hours I start getting a "Pump Speed Too Slow" alarm. Stopping and restarting the power supply does not clear the error. When started it is running at around 4800 rpm and 300 l/hr.

FW: 1024
12v: 11.98v
5v: 5.03v

Any ideas? I've disassembled/reassembled everything and found nothing.

This post has been edited 2 times, last edit by "moldilox" (Aug 20th 2023, 9:40pm)

Taubenhaucher

God

Monday, August 21st 2023, 7:33am

Without more information, it's hard for anyone to help you there, the only data point is the RPM 3 hours before the error.
You should connect the D5 NEXT with the USB cable to a computer and install the Aquasuite, then you can also read data from the pump and possibly see the error.
Es gibt keinen Ausweg, den ein Mensch nicht beschreitet, um die tatsächliche Arbeit des Denkens zu vermeiden.
Thomas Alva Edison (1847-1931), amerik. Erfinder

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