Pro tip: For a stubborn door lock actuator on a 90s Otis Gen2, a quick tap with a deadblow hammer while the power is cycled got it to re-seat perfectly after three failed attempts with the service tool.

Has anyone else found a physical shock works better than the book procedure on those old units?

3 comments

3 Comments

Had a 1998 model that would stick every winter. The book said to replace the whole actuator assembly, but a firm whack with a rubber mallet on the motor housing always freed it up. Saved us from ordering parts for years.

stone.daniel11d agoMost Upvoted

My 2003's actuator is basically held together by zip ties after my mallet skills failed. Daniela85 is right about the plastic ones being way more fragile.

daniela8511d ago

That trick works great for the blend door actuator, but the mallet treatment can actually crack the housing on the newer plastic ones. Seen it happen a couple times.