Haier Portable AC Error Codes and Troubleshooting

Haier Portable AC Error Codes and Troubleshooting:

Error Codes	Problem
E0	Indicates incoming power issues, such as a low voltage condition or excessive power consumption. Unplug the unit for 10 minutes. Service may be required
E1	Indicates a stuck button on the front panel key pad. Unplug unit and press each button firmly to reset the switches. Then, plug the unit back into the power supply. Service may be required
E4	Unit has a tank built-in that must be emptied periodically. E4 indicates the tank float is stuck. Open the water tank and verify no debris is blocking the operation of the float.
STOP	Unit has a tank built-in that must be emptied periodically. STOP indicates the tank must be emptied or tank float is stuck. Unit will not run while STOP appears. Empty the tank. Open the water reservoir and verify no debris is blocking the operation of the float.
High Temp	Appears when ambient room temperature is over 99 degrees F. If the ambient temperature is not above 99F, then service may be required.

Troubleshooting

Problem: Unit does not start or operate

Possible Cause:

1. Power supply cord is not plugged into an outlet.
2. Power supply cord has tripped.
3. The Power button has not been pressed.
4. There is no power to the electrical outlet.
5. A household fuse has blown or a circuit breaker has tripped.
6. The control was programmed for a Time Delay.
7. The batteries in the remote control are dead.
8. The internal water tank is full.

Solution:

1. Plug the power cord into a grounded 3 prong outlet.
2. Press and release the RESET button on the power supply cord.
3. Press the Power button on the Control Panel or Remote Control to turn ON the air conditioner.
4. Plug a working lamp into the outlet to check for power.
5. Replace the fuse or reset the circuit breaker.
6. Cancel the Time Delay.
7. Replace the batteries.
8. Empty the water tank.

Problem: Air conditioner is working but the room is not cooling.

Possible Cause:

1. The room temperature is hot.
2. The control is set incorrectly to Fan or Dehum mode.
3. Airflow is restricted.
4. Temperature set too high.
5. Air filters are dirty or restricted.
6. Air conditioner installed incorrectly.
7. Doors and windows are open.

Solution:

1. Allow time for the room to cool when you first turn on the unit.
2. Set the Mode to Cool and the Fan Speed to High.
3. Remove any obstacles to the airflow and redirect airflow for uniform cooling.
4. Lower the set temperature.
5. Clean the air filter.
6. Check the exhaust hose and window panel for proper installation.
7. Close the doors and windows to the room being cooled to prevent cooled air from escaping.

Problem: Remote control is not working

Possible Cause:

1. Batteries are dead.
2. Batteries are installed incorrectly.

Solution:

1. Replace the batteries.
2. Make sure the batteries are inserted in the correct position.