Gree Low Voltage Protection

Display shows P1; unit may not start or may stop under heavy load.

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

Supply voltage below minimum specification, Undersized wiring causing voltage drop, Loose neutral or line connection, Utility power issues

Safety first: Electrical work should comply with local codes.

Step 1 – Reduce load: Turn OFF other heavy appliances on the same circuit and try the AC again.
Step 2 – Check for extension cords: Do not run the AC through extension cords or power strips; connect directly to a dedicated circuit.
Step 3 – Electrician check: Have an electrician verify circuit size, wiring, and voltage at the unit. Correct any undersized wiring or loose connections.

Medium 3/5