IR volume and power of an old stereo system

/*
This code designed to control the volume and power of an old stereo system via IR with an Arduino
Compiled on Arduino 1.6.4

Created with IRecord example of IRemote Library

ALEXSHU.COM
*/

#include <IRremote.h>

int RECV_PIN = 10;
int motor_A = 11;
int motor_B = 12;
int power_relay = 13;
long last_vol_time = 0;
long vol_timeout = 100;

IRrecv irrecv(RECV_PIN);
IRsend irsend;
decode_results results;

void setup()
{
  Serial.begin(9600);
  irrecv.enableIRIn(); // Start the receiver
  pinMode(motor_A, OUTPUT);
  pinMode(motor_B, OUTPUT);
  pinMode(power_relay, OUTPUT);
}

// Storage for the recorded code
int codeType = -1; // The type of code
unsigned long codeValue; // The code value if not raw
unsigned int rawCodes[RAWBUF]; // The durations if raw
int codeLen; // The length of the code
int toggle = 0; // The RC5/6 toggle state

// Stores the code for later playback
// Most of this code is just logging
void storeCode(decode_results *results) {
  codeType = results->decode_type;
  int count = results->rawlen;

   // Serial.println(results->value, DEC);
    codeValue = results->value;
    codeLen = results->bits;

}

void vol_up(){
  digitalWrite(motor_A ,HIGH);
  digitalWrite(motor_B ,LOW);
}

void vol_down(){
  digitalWrite(motor_A ,LOW);
  digitalWrite(motor_B ,HIGH);

}

void vol_stop(){
  digitalWrite(motor_A ,LOW);
  digitalWrite(motor_B ,LOW);
}

void loop() {
 if (irrecv.decode(&results)) {
    storeCode(&results);

    if((codeValue == 2148467803) || (codeValue == 2148500571) || (codeValue == 379359532) || (codeValue == 2835546320) || (codeValue == 2964084060)){
      Serial.println("RED | Power");
          digitalWrite(power_relay ,HIGH);
          delay(100);
          digitalWrite(power_relay ,LOW);
          delay(400);
    }

    if((codeValue == 2148500572) || (codeValue == 2148467804) || (codeValue == 1064865324) || (codeValue == 1408794736) || (codeValue == 1064865324) || (codeValue == 104438857)){
      Serial.println("Green | Vol -");
      vol_down();
      last_vol_time = millis();

    }

    if((codeValue == 2148500573) || (codeValue == 2148467805) || (codeValue == 4223161638) || (codeValue == 2384381130) || (codeValue == 2467765715)){
      Serial.println("Yellow | Vol +");
      vol_up();
      last_vol_time = millis();
    }

    irrecv.resume(); // resume receiver
 }

  // Volwatchdog
  if(millis() - last_vol_time > vol_timeout) {
      vol_stop();
      codeValue = 0;
  }
  codeValue = 0;
}