What RCKen said. Listen to what he wrote.

Plus, is there anything in that model involved in a prior crash? If so, change it out.

Your hits are probably a faulty receiver you have in that airplane. Less likely is a bad off/on switch. Even less likely is a true hit.

If it were me I'd send the receiver to get checked and meanwhile replace it with a Hitec Dual Conversion receiver. You can't trust an off/on switch so change it out.