Omron

Error Remedies

The following tables outline the methods for troubleshooting each error.

E1-0: Grid Absence

• User Remedy:
  1. Ensure the AC switch is closed. Operation will automatically restart when grid voltage returns to normal.
  2. Check AC wiring.
  3. If the problem persists, contact the retailer or the installer.
• Professional Remedy:
  1. Ensure the AC switch is closed.
  2. Check AC wiring.
  3. If the problem persists, replace the inverter.

E1-1: Overvoltage (Grid)

• User Remedy:
  1. If this issue occurs rarely (e.g., once a day), no action is required. Operation will automatically restart when grid voltage normalizes. If the problem is frequent:
  2. Locate any high consumption device near your AC system.
  3. Consult your utility provider for grid conditions.
  4. Seek assistance from the installer.
• Professional Remedy:
  1. Verify system connections, including polarities and safety.
  2. Locate high consumption devices near the AC system.
  3. Consult the utility provider for grid conditions.
  4. Use inverter software to monitor frequency and voltage.
  5. If the situation does not improve, replace the inverter.

E1-2: Undervoltage (Grid) E1-3: High Frequency (Grid)

• Same remedies as for overvoltage, adjusted for the specific conditions of undervoltage or high frequency.

E1-4: Low Frequency (Grid) E1-5: Passive Insulation

• User Remedy:
  1. If this issue is rare, no immediate action is required. For frequent occurrences:
  2. Locate any high consumption device near your AC system.
  3. Consult your utility provider for grid conditions.
  4. Seek assistance from the installer.
• Professional Remedy:
  1. Verify system connections.
  2. Locate high consumption devices near the AC system.
  3. Consult the utility provider for grid conditions.
  4. Use inverter software to monitor frequency and voltage.
  5. Replace the inverter if necessary.

E1-6: Active Insulation E1-7: Instantaneous Overvoltage (Grid)

• Remedies similar to passive insulation, tailored to the specific issue of active insulation or instantaneous overvoltage.

E1-8: Instantaneous Undervoltage (Grid) E2-1: Overvoltage (DC) E2-3: Earth Leakage

• User Remedy:
  1. Disconnect the AC connection of the inverter by opening the AC switch.
  2. Check the AC junction box and system wiring. Remove the obstacle SAFELY.
  3. Reconnect the AC connection and check the inverter status.
  4. If the problem persists, contact the retailer or installer.
• Professional Remedy:
  1. Disconnect the AC side of the inverter.
  2. Disconnect the DC side from the inverter.
  3. Check both AC and DC insulation and wiring.
  4. Reconnect the AC connection and check the inverter status.
  5. Replace the inverter if necessary.

E2-4: Insulation Resistance Fault E3-4: Overtemperature A2-5: Fan Anomaly

• User Remedy:
  1. Ensure the ambient temperature for installation is below 60°C.
  2. Check the space near the heat sink.
  3. Remove all obstacles blocking heat dissipation near the heat sink.
  4. If the problem persists, contact the retailer or installer.
• Professional Remedy:
  1. Ensure the ambient temperature for installation is below 60°C.
  2. Check the space near the heat sink.
  3. Remove all obstacles blocking heat dissipation near the heat sink.
  4. Replace the inverter if the situation does not improve.

Other Errors:

• User Remedy: Contact the retailer where the product was purchased.
• Professional Remedy: For the RCD (Residual Current Device) frequently jamming, investigate earth faults caused by electrical appliances, the KP100L, or solar modules. If no anomalies are found, calculate the insulation resistance of the KP100L and solar modules, describing the circumstances of the issue.

Models: KP100L-OD
KP125L-OD
KP150L-OD
KP100L
KP125L
KP150L
KP100L-OD-EU
KP125L-OD-EU
KP150L-OD-EU
KP40G
KP100G