Skyworth Split Type Air-condition System Error Code list

 

Decoding Skyworth Air Conditioner Error Codes: A Complete Troubleshooting Guide

There is nothing more frustrating than surviving a hot afternoon only to find your Skyworth air conditioner flashing a cryptic letter and number on its digital display. While your first instinct might be to panic about a broken compressor or a hefty repair bill, those blinking codes are actually your unit’s built-in self-diagnostic system trying to help you.

Instead of guessing what is wrong, your Skyworth AC actively detects internal anomalies—ranging from a simple dirty filter to sensor miscommunications—and displays an error code so you know exactly how to address it.

Whether you own a standard wall-mounted unit or a high-efficiency inverter model, this guide will help you decipher those codes and get your cooling system back on track.

Supported Skyworth Split Type AC Models

Skyworth’s self-diagnostic system is integrated across its entire lineup of residential and commercial cooling units. The error codes detailed in this guide apply to the following popular Skyworth Split Type and Inverter Air Conditioner series:

• Skyworth Vitapure Series (Full DC Inverter Split Types: SMFC09V, SMFC12V, SMFC18V, SMFC24V)

• Skyworth SMVH Series (Standard & Inverter Wall Mounted: 9K, 12K, 18K, 24K, 28K BTU capacities)

• Skyworth Delfin Series (Wall-mounted Split Types)

• Skyworth VELA Series (Wall Split lines)

• Skyworth Premium Inverter Lines (Including R410A and R32 refrigerant variants)

Skyworth Error Code Directory & Solutions

To help you quickly diagnose the issue, we have compiled the official Skyworth error codes into a simple two-column table. Find your code on the left, and follow the recommended troubleshooting steps on the right.

Error Code	Troubleshooting Meaning & Solution
CL	Filter filth or blockage alert. Power off the AC and physically check and clean your indoor unit's air filter. If the filter is already clean, turn off the air conditioner for 2 minutes and restart it. The error code will reset and be removed automatically.
E1	Overheat protection. Turn off the aircon to let the system cool down, then restart it after 5 minutes. If the E1 code occurs again after a few minutes, there is a deeper thermal issue. Contact the Skyworth Service Center.
E2	Overcurrent protection. The unit is drawing too much electrical current. Turn off the aircon and restart it after 5 minutes. If the code persists after a few minutes of operation, immediately turn it off and contact the Skyworth Service Center to prevent electrical damage.
HE	Auxiliary heat control circuit malfunction. This requires a hard reset. Pull out the aircon plug directly from the power source. Because this involves the heating circuit board, you must contact the Skyworth Service Center for repair.
L0	Jumper malfunction. Pull out the aircon plug completely, wait, and restart after 3 minutes. If the error code appears again, contact the Skyworth Service Center.
L1	PG (Pulse-Guided) motor (indoor) zero-crossing detecting circuit malfunction. Turn off the aircon using the remote, wait a few seconds, and restart it. If the L1 error code triggers again after a few minutes, the indoor motor circuit requires professional servicing. Contact the Skyworth Service Center.
L2	No feedback signal of indoor unit fan. The mainboard cannot detect if the indoor fan is actually spinning. Turn off the aircon, wait a few seconds, and restart it. If it happens again, the fan motor or board is faulty. Contact the Service Center.
L3 / L6	Communication malfunction. The indoor unit and outdoor unit are failing to "talk" to each other. Power off the unit, wait 3 minutes, and restart. If it persists, check the communication wiring connecting the indoor and outdoor units to ensure it is secure and undamaged. If wiring looks fine but the code remains, call for service.
U0	Short/Open circuit of indoor environment sensor. Power off the air-conditioning unit and restart it after 3 minutes to attempt a sensor reset. If the error code occurs again, the ambient room sensor needs replacing. Contact the Service Center.
U1	Short/Open circuit of indoor unit tube sensor. Power off the unit, wait 3 minutes, and restart. If the error code remains, the copper tube temperature sensor is damaged. Contact the Service Center.
U6	Liquid pipe temp sensor malfunction. Power off the air-conditioning unit and restart it after 3 minutes. If the U6 error continues, the outdoor liquid line sensor has failed. Contact the Skyworth Service Center.
U7	Gas pipe temp sensor malfunction. Power off the aircon, allow the system to rest, and restart it after 3 minutes. If the error code occurs again, the gas pipe sensor is misreading. Contact the Skyworth Service Center.

Pro-Tips to Avoid Future Error Codes

While some sensor and circuit board failures (like the U-series or L-series codes) are unavoidable hardware wear and tear, the most common issues are completely preventable:

1. Don't ignore the CL Code: A clogged filter restricts airflow, forcing the compressor and indoor fan to work twice as hard. Wash your filters every 2 to 4 weeks depending on how dusty your environment is.

2. Surge Protection: Voltage fluctuations are the primary cause of the E2 (Overcurrent) and HE errors. Always plug your air conditioner into a dedicated breaker or use a heavy-duty AVR (Automatic Voltage Regulator) if you live in an area with unstable electricity.

3. Annual Deep Cleaning: Dust buildup on the outdoor condenser or indoor evaporator coils can trigger E1 (Overheat protection). Have a professional technician perform a deep chemical wash on your split-type unit at least once a year.

When to call a professional: If a hard reset (unplugging the unit for 3-5 minutes and plugging it back in) does not clear an "E", "L", or "U" error code, do not attempt to open the electrical panel yourself. Capacitors inside air conditioning units hold dangerous electrical charges even when unplugged. Always reach out to an authorized Skyworth service center for board or sensor replacements.