Hey Folks,
I have a mystery I need help with. Last week my Hayward Aquarite "Aqua+" Chlorinator went out and it was obviously the thermistor on the control board. Once I replaced that and reset the average salt level to 3000 (after profesional testing showed 3000), and setting the cell type, the chlorinator and cell are working just fine and constantly generating salt with no error codes... great!
Now the mystery... Before the thermistor went out, my Hayward OnCommand controller was talking perfectly well to the Chlorinator. Now, even though the Chlorinator Remotely Controlled light is on and apparently seems to be set to the level set by the OnCommand controller, the OnCommand says "Ext. Chlorinator Comm. Error" and Salt = 0000. Salt reading on the Chlorinator itself currently states 2900.
To summarize... the Chlorinator knows its being controlled and is listening to the OnCommand setting, but the OnCommmand says there is a communication error and can't read the salt level. This is basic RS232 communication and it should either work both ways or not - as long as all wires are connected properly.
As per the OnCommand troubleshooting I have confirmed that the wires are correct and that there is absolute continuity on all cables.
However, Hayward troubleshooting doesn't tell you what the next poossible issue might be. All other components on the Chlorinator visually seem fine so I am hard pressed to believe that another component on the Chlorinator board is bad and that component is only used to transmit information "back" to the controller. i could believe the entre RS232 circuit could be damages, but then the Chlorinator should not be responding to the Controller.
I'd hate to replace the entire Chlorinator board (that seems to be working 100% otherwise) without some positive evidence that the communication error is in there..
Does anyone have any other thoughts?
Thanks!
Richard
