The calls do latch and will not cancel calls so if I select 1c call which is the 3rd fl. From bottom and another fl. Above so car would run up and go into slowdown once it gets to 1st fl then go right back into high speed and open at top fl. Then run down and would drop out of high speed at both intermediate floors and stop and open at bottom terminal landing I have hs hsx relays and SD sdx relays I'm guessing there the relays that drop high speed I will check on Monday my stepping relays from top to bottom are 2s 2sa, 1s 1sa 1sb,ups upsa upsb and LPS lpsa lpsb I checked all these stepping relays all good I will try on Monday to check the SD and sdx relays. thanks for info infritz I will let you know how I make out it telly tough without print