Electrolux Split AC Error Code PL — What It Means & How to Fix It

What Does This Error Mean?

PL means the mains supply voltage is below the safe operating range (typically below 170V). Running an inverter AC on low voltage damages the compressor and inverter board over time. Check your power cable size and whether the AC shares a circuit with other high-draw appliances.

Affected Models

Electrolux EXH09HL1W
Electrolux EXH12HL1W
Electrolux ESV09CRK
Electrolux EWHI09
Electrolux Inverter Split System

Common Causes

Undersized power cable to the AC causing excessive voltage drop under load
AC sharing a circuit with other high-draw appliances (e.g. electric oven, dryer)
Mains supply voltage from the electricity provider is lower than rated
Loose or corroded connection at the circuit breaker, switchboard, or AC terminal
Long cable run from the switchboard to the outdoor unit with inadequate wire gauge

How to Fix It

Turn off the AC and switch off its circuit breaker.

Operating on low voltage causes compressor damage that may not be immediately obvious.
Check whether other high-power appliances are running on the same circuit as the AC.

Turning off other loads and restarting the AC can confirm whether a shared circuit is causing the voltage drop.
Inspect the power cable from the switchboard to the outdoor unit — note its gauge and length.

Longer cable runs require thicker wire to avoid voltage drop. An electrician can calculate whether the cable is adequate.
Check all accessible cable connections for looseness or corrosion — tighten if necessary.

A loose connection at the terminal block adds resistance to the circuit and causes a voltage drop.
Ask an electrician to measure the voltage at the AC circuit under full load.

Voltage measured at idle may look fine — it is the voltage under compressor startup load that matters.
If voltage is low even with nothing else running, report it to your electricity provider.

Persistent low voltage from the network is the provider's responsibility.

When to Call a Professional

Call a licensed electrician to check cable size and supply voltage under load. An undersized cable is a fire hazard regardless of the AC error — it must be corrected. Do not run the AC on a circuit that is triggering PL — low voltage operation damages the compressor.

Frequently Asked Questions

Can low voltage really damage my AC compressor?

Yes — compressors are designed to start and run within a specific voltage range. Below that range, the motor draws more current than it should, generating excess heat. Sustained low-voltage operation can shorten compressor life significantly.

My AC shows PL only when I turn on the oven — is that normal?

No — the AC and oven should not share the same circuit if they are both high-draw appliances. An electrician can confirm whether the circuit is overloaded and run a dedicated circuit for the AC if needed. This is a common wiring mistake in older homes.

Will a voltage stabiliser fix PL?

A stabiliser can compensate for mild and steady low voltage, but not for severe drops or fluctuations. If the voltage is dropping due to an undersized cable, the cable itself needs upgrading. A stabiliser is a band-aid — fixing the root cause is always the better long-term solution.