Kelvinator Indoor Unit Voltage / Power Supply Protection

Kelvinator inverter split AC displays P1 and may stop cooling.

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

Low indoor supply voltage, faulty indoor SMPS power board, loose neutral or live connection, internal fuse issue

Safety: Turn off power before opening the indoor unit.

Steps:

Check mains circuit: Ensure the AC is on a dedicated circuit with correct breaker size.
Inspect terminal block: Tighten all screws on the indoor power terminal block.
Check for burnt smell: If the indoor PCB smells burnt or shows visible damage, it likely needs replacement.

Note: Persistent P1 usually requires a technician to test and replace the indoor power supply PCB.

Hard 4/5

Indoor Power Supply PCB

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