Gree EEPROM or Configuration Parameter Error

The indoor unit displays C0; the unit may not respond to the remote or may operate in a limited mode.

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 EEPROM on the indoor PCB, Incorrect model configuration, Power surge causing a memory error, Faulty indoor PCB.

Safety first: Turn OFF power before any PCB work.

Step 1 – Power cycle: Turn OFF the breaker for 10 minutes, then restore power and test.
Step 2 – Remote reset: Remove batteries from the remote, press any button for 10 seconds, reinstall batteries, and try again.
Step 3 – Technician reprogramming: If C0 persists, the indoor PCB may need to be reprogrammed or replaced with the correct model‑coded board by a Gree service technician.

Hard 4/5

Indoor Main PCB

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