Hayward AQL-PS-8 Aqua Logic Remote will not connect to base station if filter is running?

[Vandenburg]

I've never had any problems with the remote connecting to the base station. However, recently I had to replace the water temperature sensor. Now the system is sensing the temperature just fine (so that now the heater is coming on like it should), but since then the remote says it cannot connect to the base station. Strangely though, if I switch from pool to spa, or to spillover, when it is taking the 30 seconds to switch valves the remove connects just like always. As soon as the filter kicks in, the remote can no longer connect to the base station. When I replaced the water temperature sensor it was only two simple wires and I didn't touch or change anything else. I've tried removing the new temp sensor but I still get the same behavior with the remote. I've also tried disconnecting the base station receiver and power cycling the entire system by shutting the breakers off for about 30 minutes. My first thought was that I needed to re-train the remote but it would not and obviously not needed since it will communicate while the valves are cycling.
Any ideas?

 

[ajw22]

Welcome to TFP.

What model pump and heater do you have?

.As soon as the filter kicks in, the remote can no longer connect to the base station.

Filter kicking in? The filter is a passive non-electrical device. Please explain.

 

[1poolman1]

I've never had any problems with the remote connecting to the base station. However, recently I had to replace the water temperature sensor. Now the system is sensing the temperature just fine (so that now the heater is coming on like it should), but since then the remote says it cannot connect to the base station. Strangely though, if I switch from pool to spa, or to spillover, when it is taking the 30 seconds to switch valves the remove connects just like always. As soon as the filter kicks in, the remote can no longer connect to the base station. When I replaced the water temperature sensor it was only two simple wires and I didn't touch or change anything else. I've tried removing the new temp sensor but I still get the same behavior with the remote. I've also tried disconnecting the base station receiver and power cycling the entire system by shutting the breakers off for about 30 minutes. My first thought was that I needed to re-train the remote but it would not and obviously not needed since it will communicate while the valves are cycling.
Any ideas?

Don't be afraid of your system. Do a re-train, you lose nothing. Change the channel the parts use to communicate. It sounds like perhaps electrical noise is interfering with the radio signal. It is amazing how just starting from the beginning can solve so many problems with those systems.
Are there any high-voltage and low-voltage wires running together in the same side of the control panel? That can cause the issue and should never be done.