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Troubleshooting the Equalizer on sites without a smart meter

  • Updated

This article outlines the problems that we have encountered with the Equalizer on sites without a smart meter.

Before troubleshooting or contacting support, please check these basics:

  • Fuse — Check the power in, at the meter, and PSU for Equalizer.

  • Wiring — Has the Equalizer been working without any issues before? If so, it is probably not a wiring issue. If it has not been working or if changes have been done to the wiring, check that wiring is in accordance with the schematic.

  • Firmware — Make sure that the latest firmware on the Easee Equalizer is the latest version.

Easee 3-phase 400 volt schematic using CT clamps

A recommended installation using CT clamps.

Easee 3-phase schematic using Rogowski coils

A recommended installation using Rogowski coils.

Equalizer is not reporting any current or voltage values

If the Equalizer is online, but not showing any current or voltage values, the wiring may be faulty. Check the following:

  • Make sure that the wires from the power supply are connected to their respective terminals on the modbus adapter (1 to V+ and 2 to V-).
  • Make sure that the wires from the power meter are connected to their respective terminals on the modbus adapter (A to A, B to B, and S to G).

Equalizer is reporting strange values that do not make sense

If the Equalizer is showing random, seemingly nonsensical values with possible high fluctutations, please check the following:

  1. If the charging site has any circuits on which there are no chargers (only Easee ready). If that is the case, please go to the Installer app, go to Update existing site. A list of the Sites opens.
  2. Press the Charging site, and in the Site Overview press Site structure to open the list, and press Equalizer. The Equalizer screen opens.
  3. Press Load balancing circuits. If the empty circuit is toggled On, turn it Off.

Exceptional Information Flag Icon This can also be caused by poor WiFi connection to the Equalizer.

Equalizer is showing negative values

Negative values on the Equalizer generally indicate electricity production (solar). If there are no solar panels installed and the Equalizer still shows negative values, please check the following:

  • Make sure that the current sensors are measuring current flow the correct way (to the site). Use the arrow engrained on the current sensor to check which way the current flow is being measured.
  • Make sure that the wires from current sensors are connected to their respective terminals (L1 - S1 to 1, S2 to 2, L2 - S1 to 3, S2 to 4, and so on).
  • Make sure that the current and voltage measurement corresponds to the same phase. For example, L1 needs to be connected to terminal 10 for voltage measurement, and terminals 1 and 2 for current measurement. If L1 is connected to terminal 10 for voltage measurement, but 3 and 4 for current measurement, this will lead to incorrect values.

Equalizer is showing disproportional values

The Equalizer might be showing values that are proportionally way too large or way too small. If this is occurring, check the following:

  • The primary and secondary ampere ratio on the power meter. This ratio needs to correspond to the current sensor ratio. For example, if you have a current sensor with a ratio of 100:1, you need to configure the power meter primary ampere to be 100 and secondary ampere to be 1.
  • The power meter selects 4 conductor 3-phase grid type as default. If you are on a 3 conductor 3-phase grid, please select this grid type in the power meter. You will find more information on programming the power meter in our manual.

No signal from the Equalizer

The Equalizer might seem online, but is not sending any signals. Check the LED light on the Equalizer for an error status:

No blinking

This means the Equalizer is not allocated any power. Check:

  • Wiring on the modbus adapter.
  • Wiring between power supply and power meter.
  • Power supply fuse. There should be an indication light on the power supply itself if it is operating.

Blinking red

This means that the Equalizer is not receiving any data from the power meter. Check the wiring from the power meter to the modbus adapter.

Blinking purple

This means the Equalizer is unable to connect to the WiFi. Check:

  • If the WiFi is unprotected. The WiFi must have a password.
  • The WiFi needs to be at 2.4Ghz frequency.
  • The WiFi name or password does not contain special characters. For example %, &, etc.
  • The WiFi password can not be longer than 64 characters.
  • A firewall is blocking Equalizer access.

Blinking white, rapidly

This means the Equalizer is booting. This should not last longer than 5-10 minutes.

No load balancing between Equalizer and circuits

If the Equalizer is online, but is not load balancing the circuit, check for a network communication block. Some networks have a default setting to block communication between local devices.

Unable to configure the Equalizer

If you are unable to configure the Equalizer after installing it, please check:

  • Where the NFC antenna on your smartphone is located. It may differ from model to model.
  • You might not have access to the charging site. Please ask the admin of the site to give your access.
  • The firmware of the Equalizer might be too low to configure on large sites. Contact our customer support.

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