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Troubleshooting Error 102 (Power Switch Failure) on Eve Single and Eve Double charging stations

 

Issue description

Error 102 indicates a failure in the power switching mechanism, typically related to the power board (NG) / Socket board (AHP) or its components.

 

 

Resolution steps

 

 

1. Update the firmware

Make sure that the charging station is updated to the latest version.

 

 

1.1 Perform a Reboot test

Turn the charger off for 10 seconds, then power it back on.

 

Does Error 102 reappear?

  • Yes, then go to step 1.2.

  • No, Issue resolved.

 

 

1.2 Perform a Visual Inspection of the Power Board (NG) / Socket board (AHP)

Check for visual abnormalities:

  • Cabling

  • LEDs

  • Components (relays)

  • Burnt spots

  • Fuses

  • Pin header

After checking the power board (NG) / Socket board (AHP) and fixing anything unusual, is Error 102 still showing up?

 

  • Yes, then go to step 1.3.

  • No, issue may have been resolved by your fixes.

 

 

1.3 Measure incoming voltage

Measure the voltage at the power board (NG) / Socket board (AHP)and verify that the kWh meter is supplying power.

 

Is there no voltage?

  • This could indicate an earth fault or no power from the meter cupboard. Resolve the power supply issue before continuing.

Is voltage present but Error 102 still appears?

  • Proceed to step 1.4

 

 

1.4 Test Relay Behavior
Listen closely for the relay clicks during startup:
 

  • Normal behavior: Two distinct clicks within 1 second.

  • Abnormal behavior: Only one click or continuous clicking.

Is the relay behavior abnormal and Error 102 persists?

  • Yes, then go to step 1.5

  • No, relay behavior is fine, continue monitoring

 
1.5 Reboot again
After completing the above checks, reboot the charger. Does Error 102 still appear? Then proceed to step 1.6
 
 
 
1.6 Replace component
The component (power board (NG)/Socket board (AHP)) is likely defective. Submit a 'Request for Service' ticket via support.alfen.com
 

 

Frequently Asked Questions Error 102

What does Error 102 mean?
It indicates a power switch failure, usually related to the power board (NG) / socket board (AHP) or its components.
 
What is the first thing to try in case of an Error 102?
Turn the charger off for 10 seconds, then power it back on. If the error returns, continue with the suggested step-by-step troubleshooting.
 
What should you look for during a visual inspection for Error 102?
Check for damaged cabling, burnt spots, faulty LEDs, blown fuses, or loose pin headers on the power board (NG) / Socket board (AHP)
 
How do I check if the power board is receiving voltage?
Measure the incoming voltage and check the kWh meter. No voltage may indicate an earth fault or an issue in the meter cupboard.
 
What does abnormal relay behavior mean?
If the relays click only once or keep clicking repeatedly, the relay is likely defective and the power board (NG) / Socket board (AHP) needs to be replaced.
 
 
Keywords: error 102 troubleshooting, power board failure, power switch failure