OK got it.

Oliver, are you going to market and produce the custom board you show in your video? If you can help me better understand what you are saying, I am assuming the following: You developed and have built

Thanks Oliver. Yes, I did see your posting, but I did not see any details about the controller you built. Appreciate the tip about the ADUM and the reliability issues. I am looking but cannot find any

Oliver, I forgot to mention that the motor I bought is the H6368 190KV, which was I believe your original recommendation. That has a 10mm D-shaft, and we need an 8mm D-shaft. So I need to order an H50

Agree about the motor back-fire possibility. I will be using a MOSFET to prevent that, and carry a few spare systems - they are cheap to build. Plus, as you no doubt understand, systems will develop a

By now most are familiar with the problems many of us have experienced with the Flojet/Frigoboat refrigeration water circulation pumps. Several of us who have Amel 54's have noted the very short life

I like the swimming noodle concept. Thanks for the feedback. What I have is not what I thought it was. Jamie

Well, I said I was not going to make any more comments on the A54 fridge pump issues until I get the BLDC (brushless motor) design working, but I have to make a new confirmation that seems to corrobor

Barry, I was reading this thread and saw your comment about the "Slap Silencer." You noted it was online, but where? I have this problem with my 54, but mostly have become numb to the slapping in the

OK, my "final" update on the Flojet pump and Frigoboat E51385 interface. I cannot explain it, but the interface is definitely out-putting 24 volts to the pump at all times. Maybe my interface is malfu

I just checked again and under load (with my new 12V pump) the pump output from the Frigoboat interface is clearly showing 24 volts, and the 24V light is on, just as in Scott's photo. It is as Scott i

Correction: 4405-143A

Well, to add more pain to this refrigerator pump problem, I just received my latest Flojet 4404-143 pump. It is a 12 volt pump. I recall others confirming that the voltage output from the Frigoboat sy

I replace my membranes when I see the TDS tests showing higher than "normal" levels or the water tastes a bit salty. I have found it important to actually test with a meter vs. relying on the built-in

Almost wish I had the duo system after looking at those numbers. I only have the 230 VAC version.,,,,,,, The good news is that it has been pretty reliable - the only issue I had was the mounts for the

The new engine has been excellent after 1300 hours or so. Very happy I went with the 150i, although the 110i would probably be just fine as well. I am certain that Amel is acting with an abundance of

Teun, not to hijack this thread, which is about the infernal refrigerator pump problems we have all been having, I should point out that I had to replace my Volvo Penta engine a couple of years ago. S

Teun, when I do long crossings, I like to get from point A to point B as quickly as possible. As such, I often motor-sail if the wind is not just right. Yes, I carry 900 liters in the tank, but having

I installed a bi-directional Marco pump in the starboard locker (along with fuel supply connections) so that I could transfer fuel into and out of 20-liter yellow jerry cans. I also have a bladder tan

I can echo Scott's comment about the noise generated by the Marco pumps. I use one for transferring diesel fuel in the boat and while it is very good, it is very loud, likely because of the gear-drive