Simple testing method of Harwil Flow Switches. Also test the thermistor in some models. This switch is used by most major Pool & Spa equipment manufacturers.
Hello Harwil, your Q12 spec sheet does not identify your part number for the switch with the thermister in it. what is your part number for the unit with the thermister for the C2 flow switch?
Most of our switches are manufactured to a companies specification. The part numbers change for each configuration. Please call us to discuss what you need. 805-988-6800
Sure as long as you remove the connector from the board then using a paper clip, press down inside the wire hole lock clip and slide the black and red wires out (middle 2). Then put a meter on it for continuity. With the pump off you should get no reading or OL and with the pump on you should get 000. If you don't then replace the sw. I would see if the sw is avail alone without the pipes cause it just screws in. I need to find one cause I know the hot tub store down the road will mark up the part, that even if they would sell it to me. You could close off the water hose with a rag and vise grips then unscrew the sw. Note: make note where the black and red wires go on the connector housing. Put a + on the connector where the red wire goes and also if you remove he flow sw, make note which way the flap of the sw is facing. A phone camera comes in handy here.
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Just the information I needed to know! Thank you for putting this video out so we dont have to fire the parts cannon on the issue :)
Question, black and red wires passed. White and green are registering 8.4 on a 10k, is this ok, kindly advise
Obrigado me ajudou aqui no Brasil...
Can't you just use a short weather protected wire and keep the circuit closed indefinitely instead of using the sensor switch?
Hello Harwil, your Q12 spec sheet does not identify your part number for the switch with the thermister in it. what is your part number for the unit with the thermister for the C2 flow switch?
Most of our switches are manufactured to a companies specification. The part numbers change for each configuration. Please call us to discuss what you need. 805-988-6800
how can you test them when it still in the pipe
Sure as long as you remove the connector from the board then using a paper clip, press down inside the wire hole lock clip and slide the black and red wires out (middle 2). Then put a meter on it for continuity. With the pump off you should get no reading or OL and with the pump on you should get 000. If you don't then replace the sw.
I would see if the sw is avail alone without the pipes cause it just screws in. I need to find one cause I know the hot tub store down the road will mark up the part, that even if they would sell it to me.
You could close off the water hose with a rag and vise grips then unscrew the sw. Note: make note where the black and red wires go on the connector housing. Put a + on the connector where the red wire goes and also if you remove he flow sw, make note which way the flap of the sw is facing. A phone camera comes in handy here.