How to extinguish sparks when turning off the AC motor?

Question

Electronics

Hey!

I'm trying to automate the hood in the kitchen. Inside is a conventional 220v motor with 3 speeds.
I control through a relay, and since the electric motor is an inductive load, I was puzzled by the issue of spark suppression to prevent the relay contacts from sticking. I found a detailed article (a chapter from a book) about spark arresting circuits.

I decided to use an RC circuit connected directly to the relay contacts.
I picked up an approximately suitable film capacitor (0.1uF) and a resistor (56R) according to the nomogram from the book.



I actually have 3 relays for each of the modes and each is shunted in this way.

I checked on an oscilloscope that, in general, the RC circuit copes, however, after N-experimental switching on and off, the engine began to heat up excessively (over 130 degrees) and eventually began to smoke. And it was relatively new, in the region of 4 months of regular use.

Doubts arose that my circuit was correct (I have no specialized education) and instead of extinguishing sparks, I could, on the contrary, increase the chance of a breakdown on the winding.

Can you please tell me if an RC circuit is acceptable for AC motors? And could she ruin the engine?