have a 5-floor kone MRL that on Insp it vibrates bad and when you are on auto it's not to bad 'but know I'm getting brake switch faults. I adjust the switch and it's good for 5 or6 days then comes back in. I'm thinking the vibration from the machine is causing the switches to go out of adjustment. I'm thinking the tach is causing the vibration,
Anyone had a similar problem?