Re: Mistral MSS25 Air conditioner
The compressor is stalling on startup.
Unfortunately Mistral are very cheap, in all senses. 😉
To test and diagnose you really need to be qualified to work on electrical equipment as some testing is done live.
It may be a faulty run capacitor (common), a bad/burnt connection on one of the compressor terminals, a faulty start winding on the compressor or the compressor is seized.
A run cap is an easy fix, any of the other faults I’d suggest a new air conditioner and preferably not a Mistral 😉