Haier Air Conditioner Error Code List
Air conditioners have become an essential part of our daily lives, providing comfort during sweltering summers and chilly winters. However, like all machines, they can encounter issues.
Haier air conditioners are equipped with diagnostic systems that display error codes to help users identify and troubleshoot problems efficiently. This guide aims to demystify these error codes, offering clear explanations and practical solutions in an easy-to-understand manner.
What Are Error Codes?
Error codes are alphanumeric signals displayed on your air conditioner’s interface, indicating specific malfunctions or issues within the system. By understanding these codes, you can quickly identify the problem and take appropriate action, potentially saving time and repair costs.
Common Haier AC Error Codes
Haier air conditioners utilize a range of error codes to denote various issues. Below is a detailed breakdown of some common error codes, their meanings, possible causes, and suggested solutions:
E-Series Error Codes
The E-series codes typically relate to sensor malfunctions, communication errors, and protection mechanisms within the unit.
| Error Code | Description | Possible Causes | Suggested Solutions |
|---|---|---|---|
| E1 | Indoor Temperature Sensor Failure | – Sensor is in short circuit or open circuit | – Check the sensor and related circuits; replacement may be required. Haier |
| E2 | Pipe Temperature Sensor Failure | – Sensor is in short circuit or open circuit | – Inspect the sensor and related circuits; replacement may be necessary. Haier |
| E4 | Indoor EEPROM Failure | – EEPROM malfunction | – Professional service is required to replace or reprogram the EEPROM. Haier |
| E5 | Indoor Anti-Frosting Protection | – Evaporator coil temperature is too low | – Check for restricted airflow or low refrigerant levels; ensure proper airflow and refrigerant charge. Haier |
| E7 | Communication Fault Between Indoor and Outdoor Units | – Wiring issues or communication errors | – Inspect communication wiring and connections between units; repair or replace as needed. Haier |
| E9 | Indoor Unit Overload in Heating Mode | – Overheating or electrical issues | – Check for blocked filters, obstructed airflow, or electrical problems; clean filters and ensure unobstructed airflow. Haier |
| E14 | Indoor Fan Motor Malfunction | – Motor failure or wiring issues | – Inspect the fan motor and wiring; replace faulty components. Haier |
F-Series Error Codes
The F-series codes are generally associated with protection mechanisms, sensor failures, and communication errors within the system.
| Error Code | Description | Possible Causes | Suggested Solutions |
|---|---|---|---|
| F1 | IPM Protection | – Power module issues | – Professional diagnosis is required to inspect and possibly replace the power module. Haier |
| F2 | Instantaneous Over-Current Protection of the Compressor | – Electrical surge or compressor issues | – Check for electrical surges or compressor malfunctions; professional service may be needed. Haier |
| F3 | Communication Error Between Power Module and Main PCB Board | – Faulty communication between components | – Inspect wiring and connections between the power module and main PCB; repair or replace as necessary. Haier |
| F4 | Compressor Discharge Temperature Protection | – High discharge temperature | – Check refrigerant levels and compressor operation; adjust refrigerant charge and ensure proper compressor function. Haier |
| F6 | Outdoor Ambient Sensor Failure | – Sensor malfunction | – Inspect the outdoor ambient sensor and related wiring; replace if faulty. Haier |
| F7 | Suction Temperature Sensor Failure | – Sensor malfunction | – Check the suction temperature sensor and connections; replace if necessary. Haier |
| F8 | DC Fan Motor Malfunction | – Motor or control issues | – Inspect the DC fan motor and control circuits; repair or replace as needed. Haier |
| F9 | Module Reset | – System reset required | – Perform a system reset; if the issue persists, professional service may be needed. Haier |
| F11 | Loss of Synchronism Detection | – Synchronization issues between components | – Professional diagnosis is required to identify and correct synchronization problems. Haier |
| F12 | EEPROM Failure | – EEPROM malfunction | – Professional service is required to replace or reprogram the EEPROM. Haier |
| F13 | Lack of Refrigerant | – Low refrigerant levels | – Check for refrigerant leaks and recharge the system as needed. Haier |
| F14 | 4-Way Valve Reverse Failure | – Valve malfunction | – Inspect the 4-way valve and related components; repair or replace as necessary. Haier |
| F19 | Power Over/Under Voltage Protection | – Voltage fluctuations | – Ensure stable power supply; use a voltage stabilizer if necessary. Haier |
| F20 | High Pressure Protection | – Excessive system pressure | – Check for blockages or overcharging; release excess refrigerant if overcharged. Haier |
| F21 | Outdoor Coil Temperature Sensor Failure | – Sensor malfunction | – Inspect the outdoor coil temperature sensor and wiring; replace if faulty. |