Jandy User Interface Board | R0467400

Troubleshooting - Front Board

To help diagnose whether faults are occurring on the front board or with the
flow/salinity sensor three new test buttons have been added in the upper corner of
the front board.
They are:
– ‘R-Temp’
– ‘H-Temp’
– ‘Salinity’

Disconnect the flow salinitytemp sensorfrom the front board. Press and hold the test buttons marked salinity and R-temp. While still pressing the test buttons press the ‘Salinity’key (‘C’) on the front cover of the unit. The LCD should read 2.8 gpl*.

While still holding the two front board test buttons press the ‘Pool Temperature’key (‘D’). It should read 75°F or 24°C.

Next, press and hold the board ‘H-Temp’test button, and at the same time press the ‘Salinity’key (‘C’) together with the ‘Chlorine Production Rate’arrow down key (‘A’) on the front cover of the unit. The LCD should read 91°F or 33°C.

If the readings are correct then the front board is O.K. and theproblem is with the flow sensor.

On the other hand if the readings are different then it indicates that there is a problem with the front board.

When the testing and repair is complete reconnect the flow sensor and reset the internal computer (do this by restarting the unit).

*Note: If the the salinity reading has been recalibrated this reading maybe different.
Before condemning the board check salinity setting.