Why is there no detergent coming out of my SPX-FC34? Cause Solution Detergent container is empty. Add more detergent. Detergent bottle or suction tube not properly connected. Check connections. Detergent is too thick. Dilute detergent. Discharge nozzle is obstructed. Blow out or remove debris with the needle clean out tool. Related articles Why is my SPX-FC34-MAX not dispensing detergent? Why is there no detergent coming out? Which detergent is compatible with the SPX-FC34-MAX? How do I connect my Power Scrubbing Broom model SPX-PWB1 to my Sun Joe Pressure Washer? Pressure Washer Troubleshooting