Sphere TC Spec Warranty

[tdi250]

Can anyone help me please.

I've had a Sphere TC Spec for over a year and been running it in my 2wd 1/10th buggy without issue. However recently it started twitching the throttle whilst steering in the later parts of a 5 min race.

I've taken it out of that car and fitted it to another so all of the other components were changed but it's still doing it so I know it's the speedo.
I then noticed that one of the fan blades was missing and thought the vibration caused by an unbalanced fan could be effecting it so I cut the cable to the fan and removed it, as there is no plug.

My question is if i send it off for a warranty claim will it just get refused because i've cut the fan off?