I have a Martin Hazer 2500hz, that will quite often display a OUT OF FLUID error despite having plenty of fluid in the reservoir.
Having read through the schematics it doesn't appear to have a fluid sensor, so I would assume that it looks for a drop in temperature in the heat block when fluid is expected to be pumped in. My Machine did have a blockage in the exchanger which I have now cleared and replaced the pump at the same time, and the output of the machine looks good at FULL, and acceptable at a low level.
The problem I am seeing is that if I run the machine at a low output after about 15 minutes the machine will stop with a LOW FLUID error.
Do I need to calibrate the machine due to the change of pump ? or perhaps the heater block is still slightly clogged?
Many Thanks