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25/01/2022 4:59 am
Got a 7-stop TAC20 LON job where hall calls are starting to act up. Sometimes a call won’t latch or may have to press hall button several times to finally latch a call. Any ideas?
25/01/2022 8:28 am
Are you sure it’s not the button Tk buttons go bad or the backs can pop off of them.
25/01/2022 8:42 am
Make sure LON-Bus cable is properly grounded only in the machine room side. Also check the termination resistor at the end of the bus.