Why does the Equalizer slow down or pause charging?
Understand when reduced charging is expected, what you can check, and when further troubleshooting is needed.
Why charging is adjusted
The Equalizer balances charging against the electricity used by the home.
The Equalizer protects the main fuse by continuously measuring how much electricity the home is using. If the available capacity becomes too low, it reduces or temporarily pauses charging.
This is normally expected behaviour and does not necessarily indicate a problem with the charger or Equalizer. The size of the main fuse affects how much capacity can be made available to the car.
Does charging not start in Surplus only mode?
This article applies when charging starts but becomes slower or pauses as household consumption changes. For other surplus charging symptoms, return to the troubleshooting hub.
Match what you see
Select the situation that best describes the charging behaviour.
Charging slows down or pauses
Household consumption can temporarily leave too little capacity for charging.
Homes with a 16–25 A main fuse have less capacity available for charging. This is common in some countries, including Sweden, and in cabins or holiday homes.
Appliances such as electric heating, water heaters or ovens may temporarily use most of the available capacity. The Equalizer then reduces or pauses charging to protect the main fuse.
What you may notice
- Charging power falls when other appliances switch on.
- Charging pauses more often during periods of high household consumption.
- Charging power increases again when consumption decreases.
What you can check
- Check whether several high-power appliances are running.
- Compare household consumption before and during the charging pause.
- Check whether charging recovers when household consumption decreases.
Charging does not resume immediately
Available capacity must remain stable before charging is increased again.
After capacity becomes available, the Equalizer may wait before supplying more power to the car. This can take up to 10 minutes.
Why the Equalizer waits
The delay prevents frequent changes in charging power when household consumption fluctuates. Some vehicles may interpret repeated changes as a problem and stop the charging session.
One phase has less available capacity
Three-phase charging is limited by the phase with the least available capacity.
During three-phase charging, sufficient capacity must be available on all three phases. If one phase is heavily loaded, the Equalizer must reduce the complete charging session or temporarily pause it.
This can happen even when the total household consumption appears low, because household appliances are not always distributed equally across all phases.
What you can check
- Check whether a high-power appliance is active.
- Check whether reduced charging occurs only at certain times.
- Compare the available capacity on L1, L2 and L3.
When an installer may be needed
If the phase values remain significantly different without an identifiable household load, the installation and phase distribution may need to be checked by an installer.
Check the configured main fuse limit
A lower configured limit leaves less capacity available for charging.
The Equalizer uses the configured main fuse value when calculating the available charging capacity. If this value has been intentionally reduced, charging may be slower or pause more often.
Why might the configured limit be lower?
- To keep the total power consumption below a chosen limit.
- To reduce the risk of entering a higher power tariff.
- To limit the power available for charging.
Do not increase the configured value unless it has been verified against the electrical installation.
What to do next
Start with the simplest checks and observe how charging responds.
Check household consumption
Identify appliances that are using a large amount of electricity.
Wait up to 10 minutes
Allow the available capacity to stabilise after household consumption decreases.
Compare all phases
For three-phase charging, check the available capacity on L1, L2 and L3.
Verify the main fuse setting
Confirm that the configured value matches the electrical installation.