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E5: Over-Current Protection



Step 1: Check for High Voltage

  • Ensure that the voltage levels are within the specified range. High voltage can trigger over-current protection.


Step 2: Check for Low Voltage

  • Verify that the voltage levels are not below the recommended range. Low voltage can lead to increased current draw, triggering over-current protection.


Step 3: Check for Dirty Filters, Coils

  • Inspect and clean filters and coils. Accumulated dirt can cause the system to work harder, potentially leading to over-current situations.


Step 4: Check the Reactor

  • Inspect the reactor for any signs of damage or malfunction. A faulty reactor can contribute to over-current issues.


Step 5: Check the Outdoor Fan Motor

  • Examine the outdoor fan motor for proper operation. A malfunctioning fan motor can affect heat dissipation and lead to over-current situations.


Step 6: Check the Service Valve

  • Inspect the service valve for any abnormalities. A malfunctioning service valve can disrupt the refrigerant flow, impacting system performance.


Step 7: Check the Outdoor Board

  • Examine the outdoor control board for any visible issues or signs of damage. A malfunctioning control board can contribute to electrical irregularities triggering over-current protection.

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