Recently, we had our door repainted. The painter removed the door but didn't touch the lock or handle mechanism. 

Upon rehanging the door, we have an issue where using the handle, doesn't completely open the latch.

The lock is an electronic lock, purchased in 2007. The company still exists, but fairly enough that model is no longer sold and parts are no longer available for it. 

Given the door wasn't disassembled, I am wondering if it's just a matter of something moving and their service people can just re-align things, or if it's likely something was indeed broken. 

It's $600 + GST for a replacement lock and the door would need touching up too as the new models aren't the same size (smaller). 

Anyone know much about locks?