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OK latest on Dynon 180 RPM issues with Rotax 912s. Recap - worked fine for a couple of hundred hours, then started to read low values espeically in cold weather. Dynon support suggested a 30K resistor, which just gave consistent low values and then suggested removing the resistor when this...

Thanks for your input. I emailed Dynon support this week, with the background info' (Rotax 912s, Dynon 180, 200 hrs trouble free, with recent low and eratic rpm values, and that I had followed recent Dynon instructions to install a 30K resistor which hadn't solved the problem). I asked for...

Thanks for your feedback. These are separate panel installations one with D10 EFIS and D10EMS and one with a single D180, and so both installations would be down to return both the D180 and the D10EFIS. Additionally the conflicting and incorrect advice from Dynon on the D180 rpm issue has caused...

I am losing confidence in Dynon I have two Dynon installations, one with a D180 and a second with a D10A and D10EMS. Recently after over a year of use the Dynon D180 started giving spuriously low RPM values. Dynon support suggested installing a 30K resistor and then when this didn’t work...

I am losing confidence in Dynon I have two Dynon installations, one with a D180 and a second with a D10A and D10EMS. Recently after over a year of use the Dynon D180 started giving spuriously low RPM values. Dynon support suggested installing a 30K resistor and then when this didn’t work...

On 24th of January the Dynon tech support emailed me to say that with the Rotax 912s, I should install a 30K resistor in the rpm line. Are you now contradicting this specific previous Dynon technical advise ? This is very frustrating and time consuming especially given that the system worked...

Thanks for the reply. The D180 RPM display worked fine for more than 200 hours of flying. Now at full power, RPM is around 3500 instead of 5500+ This phenomenon is worse in cold weather, and occasionally works OK for a short while. As rpm is critical to good engine health I would appreciate...

I am running a D180 with Rotax 912s. The RPM values were fine for the first year of activity, but are under reading by at least 1000-2000 rpm (but without fluctuating ie a straight consistent under-reading). Wiring has been checked and shows no signs of any damage or wear. The supplier of the...