if you changed the limit, verify its position. You could increase LPE, but that should only be done for testing since it allows an error in the count. Verify your DOL and DCL too. if you make up a door lock too soon, the timer is looking for the gate, the lock then the DCL, in that order all within a short amount of time (+/- 300 ms). More issues are caused by a real slow final door close speed or a real wide gate switch. You mentioned the power supply, what did you see on the old one? you should have a good 24 vdc, but no one ever checks the AC component riding on the DC. While measuring the DC, switch meter to AC, I don't get concerned until over 25mv of AC component on a regulated power supply. Lastly, Swifts are really flaky with analog light bulbs/gongs/chimes etc due to them drawing down the dc voltage (2 to 3 volts is not uncommon) and causing the CPU to reboot. Hope this helps.
