E462 displayed; system may not operate.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Corrupted outdoor EEPROM, Wrong outdoor PCB installed, Power surge damage, Firmware mismatch

Safety warning: Do not attempt to flash or program PCBs without official tools.

Step 1 – Power cycle: Turn off power to the outdoor unit for 10–15 minutes, then restore and test.
Step 2 – Confirm PCB part number: If the outdoor PCB was replaced, verify it matches the outdoor model exactly.
Step 3 – Check for surge damage: Look for burnt components or discoloration on the PCB.
Technician required: Outdoor EEPROM faults require professional reprogramming or PCB replacement.

Professional Required 5/5

Outdoor Unit PCB

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