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 e1 error
The E1 error code may appear when you power your Haier AC. The unit will give a beep, and the code will be flashing on the display. Try disconnecting it for 30 seconds or so. Then run it again and see what happens next. If the error is still there, there are several possible causes.
Not unlikely, one off the buttons on the front panel is stuck. Check each button by pressing and releasing them one by one. If you find a stuck one, try to gently pull it out using a long and sharp object. Most likely, the panel has gone faulty due to moisture. Unplug your AC and put it in a dry place for a few hours until the panel dries. Then try to run it again.
Check Temperature Sensor
If that does not work, check the temp sensor in the indoor unit. This may require professional help.
Use Remote Control
If the unit still fails to respond to the buttons, try to operate it using the remote control unit. It will read the signal and will be functional even if the error is still there. However, this can be pretty annoying, so please, consult your local technical service provider and have it repaired when you have a chance to.
Haier e2 error
The E2 fault code appears due to a problem in the pipe sensor, which reads the evaporator coil’s temperature. Normally, the sensor starts when the coil reaches an optimal temperature for sufficient heating. When it fails, it will signal the unit to stop the cooling process. The self-diagnostic system will detect a sensor failure and stop the entire system with the E2 error code shown on the display.
Haier e4 error
The E4 fault code means that a float in the drain pan is stuck.
The drip pan is found beneath the indoor air handler, near the evaporator coil. It collects condensed water from the unit. Turn off your AC and check the pan itself and the pipe, which is connected to the drip pan and through which the condensate should escape the unit (it may have leaks).
Clean the overflow pan and check its sides, bottom and edges. If you find a crack or a rusty spot, through which water may have leaked, you can do it up with a sealant for a while. However, the best way to solve the issue is to replace the pan.
There are two drain pans in the unit: one beneath the evaporator coils (irremovable) and the other one beneath the unit itself (removable). Repairing the permanent one is a greater challenge, and it may require professional help.
Haier e7 error
If you see the E7 error, there may be a cable disconnection. Make sure it is not loose or damaged. If you have checked the cable and haven’t found any problem, it may be due to a faulty mainboard.
Replace the capacitor 22mf 50 volt near 4 pin power ic. Most likely, the error will go away. If it does not, contact your local technical service provider.