TCL AC Error Code HC — What It Means & How to Fix It

What Does This Error Mean?

HC on a TCL AC means the Power Factor Correction (PFC) module inside the outdoor unit has triggered its protection and shut down the compressor. TCL inverter ACs use a PFC module to convert mains AC power into stable DC for the inverter compressor. HC appears when the PFC circuit detects an abnormal electrical condition it cannot correct.

Affected Models

TCL TAC Series Inverter Split AC
TCL Elite Inverter
TCL 1 Ton / 1.5 Ton / 2 Ton Inverter Split AC

Common Causes

PFC capacitor on the outdoor PCB has failed — one of the most common causes after 3-5 years
Mains supply voltage spikes or drops beyond the PFC correction range
PFC inductor (choke coil) open circuit or shorted
Outdoor PCB damaged by a power surge — the PFC section is often the first to fail
Loose mains input wiring inside the outdoor unit causing intermittent voltage at the PFC input
Ambient temperature too high — PFC components overheat and trip protection

How to Fix It

Turn off the AC and flip the circuit breaker off.

Fully de-energise the outdoor unit before taking any further steps.
Try one restart after 15 minutes if the fault appeared during a storm or power fluctuation.

A brief voltage spike can trigger HC without any permanent component failure. After a full 15-minute power-off rest, the PFC circuit capacitors discharge fully and the protection may reset. If HC returns on the next restart, stop and call a technician.
Check that the outdoor unit is not in direct sun exposure with no shade.

TCL outdoor units installed in direct sunlight in hot climates can overheat the PCB and trigger HC as a thermal protection. Providing shade or improving ventilation can prevent recurrence.
Call TCL service to test and replace the faulty PFC component.

On TCL models, HC is frequently resolved by replacing the PFC capacitor — an inexpensive part. Ask the technician to test the full outdoor PCB rather than just swapping the capacitor blindly.

When to Call a Professional

HC on TCL requires a licensed technician. The outdoor unit PCB operates at high voltage — do not open the outdoor unit casing. TCL customer care: 1800-209-1800 (India). A technician will carry standard capacitance and voltage test equipment.

Frequently Asked Questions

Is HC on TCL the same meaning as on Gree or Electrolux AC?

Yes — TCL, Gree, and Electrolux all use HC to indicate a PFC (Power Factor Correction) module fault. This is because many of these brands share similar inverter platform designs originating from the same Chinese AC technology ecosystem. The specific failed component may differ, but the diagnosis approach is the same.

How do I know if my TCL AC is still under warranty when HC appears?

TCL split ACs typically come with a 1-year PCB warranty and a longer compressor warranty (5 years in some markets). Check your purchase receipt date. If within warranty, TCL will repair or replace the outdoor PCB at no cost. Always register your TCL AC on the TCL website after purchase to simplify warranty claims.