Haier cassette air conditioner error codes

Haier Group is the world’s largest manufacturer of white goods, making 10,2% retail volume (according to the data for 2014 revealed by Euro monitor). This Chinese company is based in Shandong province. It develops and makes a wide range of appliances and electronics, including computers, washers, mobile phones, and air conditioning systems.

An air conditioner breakdown is almost always unexpected – and almost always occurs in the wrong time. However it does not mean that you have to be stuck up in a hot house without even hope on a cool breeze. The listing of Haier Cassette air conditioner error codes you will find below will help you understand the reason of the issue.

Haier cassette AC error codes

Central
contro
descriptionReason
21Drainage system failureFloat switch broken down for more than
25m continuously
01Indoor ambient temp. sensor
failure
Sensor broken down or short circuit for
more than 2m continuously
02Indoor coil temp. sensor failure
11Outdoor ambient temp. sensor
failure
12Outdoor coil temp. sensor A
failure(compressor discharging
temp. sensor)
10Over-current protectionCT check abnormal 3 times in 30m
14High pressure abnormalHigh pressure switch acts 3 times in 30m
22Power failure in overvoltage or
lackvoltage, phase error (fixed
frequency multi split)
06Communication between wired
controller and indoor abnormal
Communication abnormal for more than
4m continuously
05Communication between indoor
and outdoor abnormal
30Outside alarm signal inputOutside signal broken down for more than
10s
15Fault in discharging temp.
sensor A
Sensor broken down or short circuit for
more than 2m continuously
17EEPROM abnormalEEPROM data missing
26Outdoor pressure switch or
discharging protector abnormal
Pressure switch or discharging protector
disconnected; or CN11 on indoor PCB
disconnected. The failure occurs only when
there is no outdoor PCB.
15Compressor overheatDetected temperature of discharge line is
higher than 120*
23Fault in operation mode (fixed
frequency multi split)
Indoor units operate in different modes
18Outdoor coil temp. sensor B
failure
Sensor broken down or short circuit for
more than 2m continuously
15Fault in discharging temp.
sensor B
Detected temperature of discharge line is
higher than 120*
07Module failureModule overheat, overcurrent, short-circuit
08Fault in zero-loadCurrent sensor failure or compressor is not
started