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Table 17: Troubleshooting table (continued)
Problem (error code)
Possible cause
Possible solution
Power relay fault (0x0400)
The relay contact is detected in wrong
state or has damage
Examine the relay contact
If necessary, contact your local representative of the manufacturer
or a qualified electrical contractor. Refer to section
and contact data at the end of the document
Internal communication failure
(0x0800)
The internal boards of the Terra AC fail
to communicate with each other
Connect the Terra AC to the internet
Do a check of the WiFi signal at the site
Do a check of the Nano-SIM card connection and the 4G signal
strength at the site
E-Lock failure (0x1000)
Error to lock / unlock the charge connector
Examine the connection of the EV charge cable
If necessary, contact your local representative of the manufacturer
or a qualified electrical contractor. Refer to section
and contact data at the end of the document
Missing phase (0x2000)
B and C phase are missing or one
of these phases is missing
Contact your local representative of the manufacturer or a qualified
electrical contractor. Refer to section
data at the end of the document
Modbus communication lost
(0x4000)
The Modus communication is lost
Contact your local representative of the manufacturer or a qualified
electrical contractor. Refer to section
data at the end of the document
Offline charging record reaches
memory limit (0x8000)
Lost internet connection or incorrect
configuration
Re-conncect or re-establish internet connection
When EVSE is used offline, select offline in ChargerLink menu,
ChagerSync app
The display shows that the EV is
not ready for the charge session
or the ChargerSync app shows
'waiting for EV'
The EV is in unavailable
Wake up the EV
The EV is not charged
There is a problem with the Terra AC
Make sure that the power supply to the Terra AC is on
Examine the Terra AC to find if is working correctly
Examine the ChargerSync app and the charge LED to make sure that
the charging session is authorized
Start the charging session
The EV charge cable is defective
Examine the EV charge cable
If the EV charge cable is defective, contact your local representative
of the manufacturer or a qualified electrical contractor. Refer to
section
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