ErrorKhoj

All Voltas Air Conditioner error codes

12 codes Reported by one source — verify

Voltas uses different error code lists for different model series. Treat these meanings as a guide and confirm with your user manual.

All Voltas Air Conditioner error codes

CodeMeaningAction
E0 Memory (EEPROM) error — indoor unit board Needs a technician
E1 High pressure / overload protection / Communication error (indoor ↔ outdoor unit) / Indoor room temperature sensor faultMeaning depends on your model Needs a technician
E2 Indoor coil anti-freeze protection You can usually fix it
E3 Low gas / refrigerant leak or blockage / Outdoor air temperature sensor faultMeaning depends on your model Needs a technician
E4 Compressor overheating / High pressure / overload protection / Indoor room temperature sensor faultMeaning depends on your model Needs a technician
E5 Overcurrent / compressor overload Needs a technician
E6 Communication error (indoor ↔ outdoor unit) Needs a technician
F1 Indoor room temperature sensor fault / Indoor fan motor faultMeaning depends on your model Needs a technician
F2 Indoor coil (evaporator) temperature sensor fault / Outdoor fan motor faultMeaning depends on your model Needs a technician
F3 Outdoor air temperature sensor fault / Overcurrent / compressor overloadMeaning depends on your model Needs a technician
P1 Power supply voltage problem You can usually fix it
P4 Inverter board / power module protection / Power supply voltage problemMeaning depends on your model Needs a technician

How to see the error code

Most split ACs show the code on the indoor unit display (e.g. E6, CH05). Some models only blink a light — count the blinks, or press the remote’s check/diagnosis button if your manual mentions one.

How to reset

Sources

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

Last checked: 2026-10-20

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