Hello everyone. I wonder if anyone can point me in the right direction. Earlier this year purchased a RCOM king suro20 incubator. I have now hatched 4 lots of eggs with poor results i.e. approx half the eggs have fully formed chicks but fail to hatch. I run the incubator using the factory settings temp 37.5C and humidity 45. I stop the eggs turning on day 19 and increase the humidity to 65. As per the instructions I open the ventilator approx one third when the eggs start to hatch. Once the eggs start to hatch I do not open the incubator again until 23rd or 24th day I do not think it is a temperature problem as the chickens that do hatch are healthy and thrive well and i have also checked the temperature using other thermometers and the incubator display appears to be correct. I have also checked the humidity using other hygrometers and this display also appears to be reading correctly. From information I have got on the web the cause could be too high or too low humidity during incubation but i don't know which. I am wondering if any other customers have had similar problems with this machine.