int llf = 6;
int hlf = 2;
int mtr = 3;
int pin4 = 4;
int pin5 = 5;
int pin13 = 13;
int start = 0;
int stop = 0;
int pmp = 0;
bool pmpf = 0;
bool test = 0;
bool fault =0;
bool faultb = 0;
unsigned long tmr2;
unsigned long time;
  unsigned long LastTimeConditionWasFalse;
  
void setup() {
  // put your setup code here, to run once:
pinMode(hlf, INPUT);
pinMode(llf, INPUT);
pinMode(mtr, OUTPUT);
pinMode(pin4 , INPUT);
pinMode (pin13, OUTPUT);
pinMode(pin5, OUTPUT);

}

void loop() { // put your main code here, to run repeatedly:
  start = digitalRead(hlf);
  stop = digitalRead(llf);
  pmp = digitalRead(mtr);
  pmpf = digitalRead (pin4);



    if (start == LOW || stop == HIGH )
      {
          LastTimeConditionWasFalse = millis();
            }

        if (millis() - LastTimeConditionWasFalse >= 2000)
       {
        test = HIGH; 
          }
      else   {
     test = LOW;
    }                               
    if (millis() - LastTimeConditionWasFalse >= 10000)                {
  digitalWrite (pin13  , HIGH ); 
                                  
              }


   else { digitalWrite (pin13 ,LOW );

      }
    
    if (start == LOW && stop == HIGH || start == LOW && stop == LOW || start == HIGH && stop == HIGH){
      tmr2 = millis();
    }
    if (millis()- tmr2 >= 15000){
      fault = HIGH;
    }
else {
  fault = LOW;
}


  if(start == HIGH && stop == HIGH || stop == HIGH && pmp == HIGH || test == HIGH && fault == LOW )
   {digitalWrite(mtr, HIGH);}
 
 if(stop == LOW && test == LOW || fault == HIGH  )
 {digitalWrite(mtr, LOW);
 }
 if (fault == HIGH && pmpf == LOW){
   faultb = HIGH;
 }
 if (faultb == HIGH){
   digitalWrite(pin5, HIGH);
   delay(250);
   digitalWrite(pin5, LOW);
   delay(250);
 }
 if (pmpf == HIGH){
   faultb = LOW;
 }
 
 
}