Hi i have a leak on an FDU250VD MIHI indoor
the water is jumping out of the water pan towards the fans and then inside the duct.
The evaporator is clean, i have installed a drain water trap without any results (MIHI says in the manual that a trap is not needed),the drain pan is clean, the drain pipe is ok,
If i open the bottom sheetmetal on the unit while operating in cooling i can actually see the water jumping outside the pan. I took the unit apart to see what is wrong and i found that the insulation strip between the evaporator and the drain pan was damaged so i replaced it but the water still jumps out of the pan.
I am an experienced engineer and these kind of problems usually get fixed with a proper drain trap.
I was thinking that the evaporator is icing and i left it on fan only and tested it by pouring water in the drain pan.The water was still jumping out of the pan.
It is an inverter unit so i shouldn't be worried about the coil temp being too low.
Other engineers try to fix it before me with no results.
The evaporator looks like its touching the drain pan correctly.
Please help me on this one,
Thanks!