IC40: Which Flow Switch to buy?

-Ed

Bronze Supporter
Oct 9, 2021
29
Portland OR
Pool Size
22000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-20
The red low temperature light went on on my IC 40. This seemed unusual as the temperature of the water was about 80°. It was my guess that the thermistor had gone bad. So I replaced the flow switch and everything operated normally for several weeks and then the light went back on. I replaced the flow switch again and everything was good for several weeks and now the light is back on. I bought my flow switch from Amazon. They have three or four different kinds ranging from about $25 all the way up to close to $100. I bought the $25 unit. I’m wondering if I should just shell out the hundred dollars for the more expensive unit? Or could it be something else? I did solder all of my connections and made sure the orientation was correct.
 
You can decide how many cheap generic knockoff flow switch assemblies you buy before it becomes worth buying a genuine Pentair flow switch assembly.

The quality of the generic knockoffs is unknown and they don't care about their reputation.