Crunchy Motor sounds Concern Or Paranoia

[BobDaGoon]

Yes, I had a mishap at the beach and got sand in the motors. three of the motors make this horrible crunching sound when I turn them by hand. But it doesn't seem to affect flight.

I do have the Refresh Service. So, Should I send it in or I'm just paranoid.
Opinions and thoughts much appreciated

 

[FlyingDnutts]

Send it in to satisfied yourself. They might fix it under warranty instead of using your refresh so you get a free fix if it's fall under warranty. Idk, much but I sent my mavic in after a accident, I did the repair process, litterly it been less than a week and I already got a repair invoice saying I owe $244, for repairs but, I request to use my refresh care and go to find out my repair was cover under warranty? Which meant I didn't have to pay for repairs?? Save me money so I didn't questions and now I received a email earlier today saying that repair is done and dji is expected to ship my mavic within 3 business day. Which would make my repair process, done within 2 weeks of sending in to get repair and return to me once payment was confirmed, but since my repair was cover under the warranty I had no payment and my mavic is hopefully fix life new or even better when I receive I will update.

Dnuttz

 

[BobDaGoon]

Just an Update:

I sent it in, they said it will be 150$USD for repairs or 79$USD for the refresh. That's actually the default choice. I presume the refresh unit is a referb??