Blue Star Air Conditioner

Blue Star AC LC error

Compressor start / rotation fault

Needs a technicianReported by one source — verify

Try a reset once. If it comes back, a trained technician should repair it.

We found this meaning in only one secondary source. Confirm it with your user manual or brand customer care before any repair.

What it means

The compressor did not start, lost its position signal, or is not turning properly.

Common causes

Low voltage at start-up
Faulty compressor wiring or inverter board
Jammed or damaged compressor

Try this at home first

Tick each step as you go

Switch off for 15 minutes and restart once
Check that the voltage is stable

When to call a technician

If it returns, a technician must test the compressor and inverter board. Don’t keep restarting it.

Safety first

Always switch off at the wall socket or MCB before touching any part. Do not open the outdoor unit, control boards or gas pipes yourself — they carry high voltage and pressure.

Frequently asked questions

What does LC mean on a Blue Star Air Conditioner?

Compressor start / rotation fault. The compressor did not start, lost its position signal, or is not turning properly.

Can I fix Blue Star Air Conditioner error LC myself?

You can try a reset first: Switch off for 15 minutes and restart once. If the code returns, call a technician.

Is it safe to keep using the Air Conditioner with LC?

Avoid repeated restarts; running with this fault can cause more damage.

Other Blue Star AC codes

H3 Outdoor unit overheat protection / Compressor overheating H6 Indoor fan motor fault L1 Power supply voltage problem / Inverter board / power module protection L2 Inverter board / power module protection L3 Outdoor fan motor fault L4 Current sensor (CT) fault P1 Power supply voltage problem P2 Outdoor unit overheat protection P3 Overcurrent / compressor overload P4 Power supply voltage problem P5 Overcurrent / compressor overload P7 Inverter board / power module protection

All Blue Star Air Conditioner error codes

Same code on other brands

LC Water leak detected / Water level (pressure) sensor faultSamsung Washing Machine LOC Child lock is onWhirlpool Washing Machine

Sources

We write every explanation in our own words from these references.

Last checked: 2026-10-20