I cannot get HST relay to drop out and cancel the hall calls. This is a duplex and it is approx. 30 years old. The situation is as follows: The only way the the hall calls will cancel on the one car is if the second car is at the same landing. I have checked and changed a number of floor bars on the selector and still no luck. HST Relay is set / reset coil and for information purposes only it is a 222 cy1 Any suggestions would be greatly appreciated . Thanks in advance.