By Raypak
Part # 017155F
Alternate Part #'s 47-197-2516, RAY-151-1949, RAY017155F
Flow Sensor, E3T 0005/0011 - 017155F
Less than 1 hr
Pliers
Our Raypak electric heater was not working; specifically was not heating the water at all and did not display the temperature on the dial. I watched some youtube videos and discovered my flow sensor was likely the source of the problem. I used needle nosed pliers and pulled out the old flow sensor to find it was broken into two pieces. It was simple to replace with the new one. And the spa heater was working once again!