Fixing Problems

Bad Voltage Range
OverviewOne of the most common reasons for customers contacting our support team is the warning message "bad voltage ...
Changing radio frequency on myenergi devices
myenergi devices use radio frequency (RF) to communicate and pair with one another. Different regions require differe...
Charge Delayed
What does 'Charge Delayed' mean? When your zappi displays ‘Charge Delayed’, it means the charger is ready to begin s...
Comms Fault #26 / NMI Displayed
The Comms Fault / NMI warning is typically related to the ribbon cable inside the zappi, which transfers power and d...
Concerns about zappi overheating in hot environments
Thermal ProtectionLike all modern smart devices, including solar inverters and EV chargers, zappi includes built-in t...
Contactor Fault - Voltage Related
Overview     Investigation Findings During onsite investigations, we have found that the warning may some...
Do I need to fit a grid CT Clamp?
Watch this short video which explains how the grid CT clamp works and why it’s required across the myenergi ecosystem...
Factory Reset and Set Up - zappi v2.1
Applies to Firmware Prior to 5.551 Please take note of your current settings before proceeding. A factory reset wi...
How to Use zappi with AlphaESS Battery — Charge Your EV from Solar Without Draining Your Battery
For homeowners with a AlphaESS Smile-M5 and Smile-G3 series and a zappi EV charger.In short: zappi works with AlphaES...
How to Use zappi with GoodWe Battery — Charge Your EV from Solar Without Draining Your Battery
For homeowners with a GoodWe ESA series (all-in-one) and Lynx Home F G2 (with GoodWe hybrid inverters) and a zappi EV...
How to Use zappi with Sigenergy Battery — Charge Your EV from Solar Without Draining Your Battery
For homeowners with a Sigenergy SigenStor battery (single-phase and three-phase) and a zappi EV charger.In short: zap...
How to Use zappi with Sungrow Battery — Charge Your EV from Solar Without Draining Your Battery
For homeowners with a Sungrow SBR HV and SBH series batteries (paired with Sungrow SH hybrid inverters) and a zappi E...
How to Use zappi with Tesla Powerwall Battery — Charge Your EV from Solar Without Draining Your Battery
For homeowners with a Tesla Powerwall 2 or Powerwall 3 and a zappi EV charger. In short: zappi works with Powerwall o...
Lock Failure ! #23
Overview The article provides an overview of the Lock Failure ! error message that appears on the zappi device. This...
Lower-than-Expected Charging Rates / Slow Charge
If your EV is charging at a rate lower than expected, there are several key checks to help pinpoint and resolve the i...
myenergi Wi-Fi Setup & Troubleshooting
This article walks you through connecting a myenergi device to your Wi-Fi network — from initial checks and setup, th...
PE Fault
The PE check is an advanced safety feature within zappi that ensures the continuity of the earth conductor by measur...
Pilot Problem
 Pilot Problem WarningThe "Pilot Problem" warning appears when your zappi detects an issue with the Control Pilot sig...
PIN protection after firmware update?
Your zappi may now ask you to set a PIN after updating to the latest firmware. This update adds important security im...
Providing Feedback on myenergi Products
At myenergi, we value your feedback and continuously strive to improve our products based on customer suggestions. Yo...
Recovering a zappi 2.1 affected by NMI issue
What is NMI? NMI refers to a fault state where a zappi 2.1 displays a screen filled with lines of code. Each line beg...
Recovering a zappi 2.1 with an NMI Screen (Advanced Steps)
If your zappi 2.1 is displaying an NMI message and you’re able to connect it to your router using an Ethernet cable v...
Understanding PWM (Pulse Width Modulation)
In this article: Overview Where to find PWM PWM Range PWM To kW / AMP Chart Overview Pulse Width Modulation (PWM) ...
Understanding State of Charge Limits and Charging Resumption in ECO, ECO+, and FAST Modes on the zappi
Several users have noted that once an EV reaches a defined State of Charge (SOC) limit, the zappi may not resume char...
Understanding the "Check Grid CT / Installation Limit / Grid CT Lost" Error
Check Grid CT / Installation Limit / Grid CT Lost This message appears when the system detects a problem with the ...
Understanding the 60/70V Floating Voltage Issue with Testers
In this article, we aim to clarify a common query raised by installers regarding a 60V reading when using certain tes...
Understanding the myenergi Ecosystem Devices Limit
The myenergi ecosystem is designed to provide seamless integration between your devices, ensuring efficient energy ma...
Understanding Zappi's Behaviour When Surplus Drops Below Minimum Generation Level
When using the zappi to manage renewable energy charging, a key feature ensures that it prioritises surplus energy fr...
Upstream RCD / MCB Tripping
Overview There are many reasons why the supplying RCD/MCB may trip with Zappi.  Some are related to the Zappi having ...
What Does “EV Disconnected” Mean on zappi?
Seeing EV Disconnected on your zappi screen is nothing to panic about. It simply means the charger is not detecting a...