News — trouble shooting

ERR2, ERR3, ERR4 Controller not get connected with Programmer. Re-start power to check again. Need to replace controller or programmer if still not work.  Mismatched versions of controllers and hand programmer can also cause errors. It is recommended to replace them with the latest version to resolve the issue. The door stay open not auto close Open direction is wrong. Power off, then manually open the door in half open, then power on, if the door come close first, the open direction is correct. If the door come open first, need to change open direction by hand programmer in F2...