Problem with Sn, Dr and Dy

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stepas

New member
Jun 3, 2024
3
Lithuania
Surface
Plaster
Chlorine
Liquid Chlorine
Hello,
Im new here and expecting some help with jacuzzi.
I got jacuzzi with house and now trying to fix it. After turning power on we got “Pr” code(prime i think so) after pr code we getting Sn code after few time all pumps turning off and we getting Dr code, after while Dr code we got dy code. We changed temp sensors in balboa heater from completly working jacuzzi and new circulation pump. Maybe someone got problem like this or was fixing this things for someone? Help me please
 
You can't necessarily just swap out boards. Different models have different functions, compatible topside controllers, and programming.
Again, to help you I need to see the wiring diagram on the cover of the box that board came from. It should show the dipswitch configurations for that board, which are needed to program it.
This system uses the two temp sensors for both temp control and flow detection. So Fl, dr, sn, oh, and probably a few more are all triggered by various temp sensor readings. Faulty sensors (out by even a few hundred ohms) can trigger all kinds of errors. For example, a rapidly increasing temp on both will trigger a FL and OH, but no increase will trigger a dr. Also these sensors are directional, so sensor A should be where water enters the heater tube and B where it leaves.
I can't help but notice the excessive rust on the transformer. Voltage problems can cause random error codes.
 
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