How do I reset a Jandy TCX to factory default or erase its setup?

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afassas

Member
Jul 11, 2023
11
Kentucky
I have the following somewhat simple pool equipment:
Jandy TCX (iAqualink) automation control
Jandy Aquapure salt water chlorine generator
A newly installed Century VGreen EVO 1.65 HP variable speed pump (model EVC165)
Jandy JVA to control flow to water feature

Before the new variable speed pump I had a single speed pump.

The Jandy TCX with the single speed pump worked great. I could turn on/off the filter pump motor via the iAqualink app or via schedule. The SWCG would come on with it, as both were on the AUX Relay. I could control the SWCG via the iAqualink app and adjust its output %.

I replaced the filter pump.
The new VSP works in standalone mode just fine.
Changed VSP dip switches (#3 & 4 both ON). Powered up and then off to change the VSP schedule mode to 'Century Connect'.
Connected up the RS-485 wiring for communication.
Powered on the Jandy TCX. Now iAqualink in System Settings sees a VSP Pump. I completed the setups in iAqualink for the VSP Pump. iAqualink via the TCX is now able to control and vary the VSP rpm.
Tried to setup the SWCG to automatically come on with the Filter Pump. The AUX Relay would power up the SWCG, but there is NO data communications between the TCX and the Aquapure. The VSP pump is working as it should.

In trying to get the VSP and the SWCG to all communicate nicely, I have tried changing the Filter Pumps RS-485 device address ID.
Now I can't address or control either the Century EVO VSP or the Jandy Aquapure SWCG. There seems to be no way to delete the VSP Filter Pump setup in the Jandy TCX. TCX is so new that I am not finding any documented way to accomplish a reset to factory defaults.

I am also wondering if there is a way to perform a reset to factory defaults on the Century EVO VSP.

Of course I will also accept help with the proper path to getting the VSP and SWCG setup and playing nice together with the TCS automation. Century specifically states it is compatible with the Jandy TCX.

Thanks in advance!

Update 1: I have successfully reset the Century EVO VSP to factory defaults. The EVO motor controls are a single button with a green LED; a long enough press (in excess of 50 seconds) of this single button caused a reset of the EVO settings. I am now able to successfully see that in Century Connect mode that it is device address ID #1. Still no improvement with being able to be controlled by my confused Jandy TCX.
 
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Update 2:
I finally connected with technical support at Fluidra / Jandy. Yes there is a factory default reset sequence for the Jandy TCX. And yes, this partially fixed my issues. More about the partially later.

The Jandy TCX consists of the TCX PIB (Power Interface Board) which contains the relay, 2 RS-485 4 wire terminal blocks, and a plug in for a JVA. The second part of the TCX is the Command Hub which contains the Wi-Fi or wired ethernet, and bluetooth, connectivity plus three buttons for manual control of the TCX at the unit. All other control is done with the iAqualink mobile device app.

On the Command Hub is a button referred to as 'Service' (not labeled as such) which toggles between Auto, Quick Clean, Service, Time Out. The second button is to manually turn on/off the Pool Pump. The third button is for pairing a bluetooth device.

Now for the Reset to Factory Default sequence:
1. Power off the TCX, as a precaution wait 30 seconds.
2. Press and hold both the Service and Pool Pump buttons, while
3. Power on the TCX.
4. Look for the service lights to blink wildly.
5. I waited for 30 seconds after power on while still holding the 2 buttons (this part of the instructions was not clear, but worked for me. Then power off. Release buttons. (not sure you had to hold the buttons for the entire time after the blinking wildly, but this worked for me.
6. Wait 30 seconds after power off.
7. I did not always have a good reset so I adopted the following. Repeat steps 2-6 a second time.
8. Power up the TCX with no RS-485 devices connected except for the Command Hub. Power on for at least 30 seconds.
9. Power off the TCX.
10. Wait 30 seconds after power off.
11. Now proceed with connectivity of the TCX as provided in the Installation and Operations Manual.
12. Power off the TCX and wait 30 seconds after power off.
13. Connect any RS-485 connected devices. Beware that RS-485 devices will only register with the TCX when they are powered on either by the TCX relay or otherwise.

Good luck!

It appears that my brand new Century VGreen EVO VSP RS-485 communications may now be toast and I will be troubleshooting this. The salt water chlorine generator is communicating and can be controlled from iAqualink. The VSP pump is operating in standalone mode.
 
afassas said:
It appears that my brand new Century VGreen EVO VSP RS-485 communications may now be toast and I will be troubleshooting this. The salt water chlorine generator is communicating and can be controlled from iAqualink. The VSP pump is operating in standalone mode.
Click to expand...
I'm sorry you're going through this. I for one am interested to hear how/why the toasting happened. RS-485 is deliberately designed to be pretty bullet proof.
 
I am still fighting to get my Jandy TCX to recognize my new Century VGreen EVO 1.65HP variable speed pump (EVC165).

When I first set the new pump motor up as Schedule D for RS-485 automation the Jandy TCX recognized the VSP and would control it. The only issue was that the Jandy TCX had lost the ability to control the Jandy Aquapure salt water chlorine generator, although both the VSP and the SWCG were connected via RS-485.

In my attempts to get the Jandy TCX to work with both, I broke its ability to work with the VSP, but then it would talk to and control the SWCG.

Finally reached Fluidra / Jandy technical support and they walked me through the steps to factory default reset the Jandy TCX (see above post in this thread).

I followed several other helpful threads and have been able to successfully connect my laptop computer to the RS-485 of the Century EVO pump motor. I can control the VSP from my laptop. Read settings and configurations. Set and store RPM. Issue GO and STOP commands. Motor responds as it should.

I have connected the laptop to the Jandy TCX RS-485 and watch the TCX issue a constant stream of RS-485 data. The RS-485 is also used for the TCX main PCB to communicate with the TCX Command Hub unit, which provides both wi-fi connectivity and physical buttons for simple controls.

I am stumped as to how to get the Jandy TCX to again recognize that it has a VSP connected to it.

I finally reached a customer support person at Regal Rexnord the corporate parent of the Century brand. This person said that they do not have a customer facing technical support. She shared what notes she had for setup of the previous generation VGreen motor before the EVO one-button control. I do have the option of sending an email to Rexnord Engineering for support.

It is frustrating. Currently operating the pump motor in standalone mode with a preprogrammed schedule. Too bad I can't use the iAqualink app to automatically speed up the motor when I turn on my water feature at this time. First world problems, I know.
 
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