Troubleshooting - EV Wall Home/One (V3) - CT Hub/Solidcore are not found

Your EV Wall Home or EV One Home is online and its charger modules are found, but one or more CT Hubs or Solidcores are not found. Without them there are no measurements, so smart charging and load balancing do not work correctly.

This article applies to:

EV Wall Home V3 (6220 / 6221): Modules and wiring
EV One Home V3 (6521): Modules and wiring
EV Wall Home V2 (6200 / 6201): Modules and wiring

Is the Power Box not found either, or only the Connect? Then start with Not all the EV Line components are being detected.

Safety: The checks below are done inside the charging station and the electrical cabinet. Only a qualified installer should carry them out. Switch off the power before you open the charger.

How the CT Hubs and Solidcores are connected

The CT Hubs and Solidcores are connected in a chain to the A port of the Splitter, outside the charger. The Splitter is connected to the charger with a network cable (UTP), and inside the charger the A-bus continues to the Power Box. Together, these parts form the A-bus (the yellow line in the drawing below).

EV Wall Home V3 / EV One Home V3: inside the charger, the A-bus runs from the relay board to the A port of the Power Box.
EV Wall Home V2: inside the charger, the A-bus runs from the RFID reader in the front cover to the A port of the Power Box. A Solidcore can also be mounted inside the charger, between the Power Box and the RFID reader.

Which situation do you have?

What you see	Go to
No CT Hub and no Solidcore is found	None found
Some CT Hubs or Solidcores are found, but not all	Some missing

Note: Always compare with what is physically installed. A module that was replaced, or that was registered but never installed, can stay in the list as "not found". That is not a fault.

None found: no CT Hub and no Solidcore

Restart the charging station with its circuit breaker (power off, wait a few seconds, power on).
Check the connection outside the charger. The CT Hub or Solidcore must be on the A port of the Splitter (not the B port, not directly on the Connect). Several CT Hubs are connected in a chain, not each to the Splitter. With more than 3 CT Hubs or a long distance, place the closing plug in the last module. All RJ10 cables firmly seated, without bent or missing pins. The total A-bus length (from the Power Box to the last CT Hub) must stay under 100 meters.
Check inside the charger. EV Wall Home V3 / EV One Home V3: the RJ10 cable between the A port of the Power Box and the A port of the relay board. EV Wall Home V2: the RJ10 cable between the A port of the Power Box and the A port of the RFID reader (with a Solidcore inside the charger: check both cables).
Test directly on the Power Box. Connect one CT Hub or Solidcore directly to the Power Box. Not found? Then the Power Box or that CT Hub / Solidcore is the cause. Found? Then the cause is between the charger and the Splitter: continue with step 5.
Test the network cable between the Splitter and the charger with a ready-made UTP cable. Found now? Then the original cable was the cause. This cable is often made on site: the A-bus and B-bus run over different wires, so a cable can work for the B-bus and still fail on the A-bus. Use a cable tester.
Look for a defective module. Disconnect all CT Hubs and Solidcores and reconnect them one by one. The module that makes the chain drop is defective.

Workaround (EV Wall Home V3 / EV One Home V3): second Splitter inside the charger

If the A+B port or A port of the relay board is the cause, a second Splitter inside the charging station can be used as a temporary workaround. Contact support: the relay board still has to be replaced.

Connect the UTP cable that goes to the relay board to the Splitter inside the charging station.
Disconnect the A-bus from the relay board and connect it to the A port of that Splitter.
Connect the rear B port (port 3) of the relay board with an RJ10 cable to the B port of the Splitter.

Some missing: not all CT Hubs or Solidcores found

Find the missing module. Compare the serial numbers in the module list with the modules installed on site, and check that the missing module is really connected in the chain.
Check its power LED. CT Hub: the LED at CT port 1. Solidcore: the LED at the opening for the phase wire.
LED on: the module has power. Still not found? Contact support.
LED off: replace the RJ10 cable to this module with a cable you know works. LED comes on: the cable was defective. LED stays off: the module is defective.
Check the capacity. A CT Hub measures 4 CTs, a Solidcore 3. One Power Box handles at most 7 CT Hubs (28 measurements). More is not possible on one installation: that needs a multi-gateway setup. All modules found but not enough CTs for the measurements you need? Then an extra CT Hub or Solidcore is needed.

Replaced a CT Hub or Solidcore?

Assign the measurements of the new module again in the Smappee app, under Settings > Smappee monitors > Circuit configuration. Then check the measurements, see Validating the measurements of your Smappee monitor.

Still not found?

Contact Smappee support via smappee.com/support with the serial number of the charging station, the serial number of the missing CT Hub or Solidcore, and the checks you already did.

Related to