I was called to this dryer after customer complaining it wasn’t drying properly, on removed the heat exchanger and filter it was obvious it has never been cleaned, all were totally blocked up, I washed all parts and internal water ways…I left for customer to try out…got a call next day telling me is still not drying as it used to.. there are two NTC one on heat elements and on air flow..I don’t know the values ?? would this cause this problem.. cheers John