Hello,

I have a 2 stop Kone MRL that was having various intermittent issues. We made a detailed list of all parameters, then sent in the ADON, CPU, and drive for testing, repair/refurbishment. ADON board was found to have a few bad relays which were changed. Everything else stayed the same. Upon re-installation, car would not move down on inspection, and we could not perform an ADON learn. Car jerks up whether I'm holding the up or down directional buttons. Double checked all parameters and found to be the same. Finally was able to move the car down by reversing the phasing. Weird thing is the car runs smooth in both directions when phasing is reversed, but won't move in the down direction at all with correct phasing. Double checked all connections, and even tried a second brand new ADON board with the same results. I'm newer to these machines so any help would be appreciated.